Patina conservation; in-process. Fernando Botero. Leda and Swan. Bronze. Breezeway @ 40 W. 57th st. NY NY. Client: Marlborough Gallery.

Oxidation damage (detail). Fernando Botero. Leda and Swan. Breezeway @ 40 W. 57th st. NY NY. Client: Marlborough Gallery.

Oxidation damage (detail). Fernando Botero. Leda and Swan. Breezeway @ 40 W. 57th st. NY NY. Client: Marlborough Gallery.

Oxidation damage (detail). Fernando Botero. Leda and Swan. Breezeway @ 40 W. 57th st. NY NY. Client: Marlborough Gallery.

Oxidation damage (detail). Fernando Botero. Leda and Swan. Breezeway @ 40 W. 57th st. NY NY. Client: Marlborough Gallery.

Conservation complete. Fernando Botero. Leda and Swan. Breezeway @ 40 W. 57th st. NY NY. Client: Marlborough Gallery.

Surface conservation; abrasion(s) and patina loss on horse hooves. Fernando Botero. Horse with Bridle. Client: Marlborough Gallery.

Surface conservation; abrasion(s) and patina loss on horse hooves. Fernando Botero. Horse with Bridle. Client: Marlborough Gallery.

Abrasions and patina loss repaired. Fernando Botero. Horse with Bridle. Client: Marlborough Gallery.

Conservation treatment(s) complete. Fernando Botero. Horse with Bridle. Client: Marlborough Gallery.

Surface conservation; patina restoration. Fernando Botero. Reclining Couple. Bronze. Client: Private Collection.

Detail; patina restoration. Fernando Botero. Reclining Couple. Bronze. Client: Private Collection.

Surface conservation; patina restoration. Fernando Botero. Reclining Couple. Bronze. Client: Private Collection.

Surface conservation; patina restoration in-process. Fernando Botero. Reclining Couple. Bronze. Client: Private Collection.

Conservation treatments complete. Fernando Botero. Reclining Couple. Bronze. Client: Private Collection.

Conservation treatments complete. Fernando Botero. Reclining Couple. Bronze. Client: Private Collection.

Catalogue Image. Fernando Botero. Horse and Rider. Bronze. Client: Marlborough Gallery.

Surface repair to leading edge of integral base. Fernando Botero. Horse and Rider. Client: Marlborough Gallery.

Detail of damages on leading edge of integral base. Fernando Botero. Horse and Rider. Client: Marlborough Gallery.

Nick repair in-process; precision TIG welding. Fernando Botero. Horse and Rider. Client: Marlborough Gallery.

Welds sanded flush with existing surface; nicks repaired. Fernando Botero. Horse and Rider. Client: Marlborough Gallery.

After patina restoration; conservation treatments completed. Fernando Botero. Horse and Rider. Bronze. Client: Marlborough Gallery.

Fabrication of Ashley Bickerton’s Mantas; two cast urethane manta rays mechanically joined together. Client: ATH Studios.

Art fabrication; in-process. Ashley Bickerton. Double Manta II; detail of two part mold. Client: ATH Studios.

Finishing paint details. Ashley Bickerton. Double Manta II. Client: ATH Studios.

Ashley Bickerton. Double Manta II. Cast urethane. Client: ATH Studios.

Fabrication of Square within Square, 2018. Prepping for plastic pour; taping off the wood frame structure for resin topcoat. Ashley Bickerton. Client: ATH Studios.

Fabrication of Square within Square, 2018. Cast urethane rocks epoxied in place. Ashley Bickerton. Client: ATH Studios.

Fabrication of Swordfish, 2018. Cast urethane rocks; epoxied in place. Ashley Bickerton. Client: ATH Studios.

Sculpture complete. Ashley Bickerton. Swordfish, 2018. Client: ATH Studios.

Surface conservation. Ashley Bickerton. Lonely Wanker. Oil and photo collage on wood. Client: ATH Studios

Surface conservation. Ashley Bickerton. Lonely Wanker. Oil and photo collage on wood. Client: ATH Studios.

Surface conservation; repair of abrasions and paint loss in-process. Ashley Bickerton. SUSIE. Latex on masonite. Client: ATH Studios.

Surface conservation; repair of abrasions and paint loss in-process. Ashley Bickerton. SUSIE. Latex on masonite. Client: ATH Studios.

Conservation treatments complete. Ashley Bickerton. SUSIE. Latex on masonite. Client: ATH Studios.

Restoration of paint finish on fabricated aluminum sculpture. Hand-sanding; surface prep for painting. Santiago Calatrava. S4. Park Avenue Mall, NY NY. Client: Marlborough Gallery.

Paint restoration; in-process. Spraying finish coat on repaired sections. Santiago Calatrava. S4. Park Avenue Mall, NY NY. Client: Marlborough Gallery.

Paint restoration complete. Santiago Calatrava. S4. Park Avenue Mall, NY NY. Client: Marlborough Gallery.

Paint restoration; in process. Tony Rosenthal. Cube. Aluminum. Private Collection: Sid Singer.

Paint restoration; in process. Tony Rosenthal. Cube. Aluminum. Private Collection: Sid Singer.

Surface conservation treatments complete. Tony Rosenthal. Cube. Aluminum. Private Collection: Sid Singer.

Catalogue image. Tony Rosenthal. Tidelune, 1973. Bronze. Client: Heckscher Museum of Art.

Surface conservation; polishing and oxidation removal in-process. Tony Rosenthal. Tidelune, 1973. Bronze. Client: Heckscher Museum of Art.

Surface conservation; polishing and oxidation removal in-process. Tony Rosenthal. Tidelune, 1973. Bronze. Client: Heckscher Museum of Art.

Polishing and oxidation removal in-process. Tony Rosenthal. Tidelune, 1973. Bronze. Client: Heckscher Museum of Art.

Surface conservation; polishing and oxidation removal in-process. Tony Rosenthal. Tidelune, 1973. Bronze. Client: Heckscher Museum of Art.

Surface conservation; removal of calcification (oxidation damage). Chemical and mechanical cleaning. Manolo Valdes. Galatea. Aluminum. 2012. Client: Marlborough Gallery.

Surface conservation; removal of calcification (oxidation damage). Chemical and mechanical cleaning. Manolo Valdes. Galatea. Aluminum. 2012. Client: Marlborough Gallery.

Removal of calcification process complete. Manolo Valdes. Galatea. Aluminum. 2012. Client: Marlborough Gallery.

Custom stainless steel mounting flanges; fabricated and installed. Manolo Valdes. Dama Caballero. Bronze. Client: Marlborough Gallery.

Custom stainless steel mounting flanges; installation in-process. Manolo Valdes. Dama Caballero. Bronze. Client: Marlborough Gallery.

Custom stainless steel mounting flanges; installed via precision structural TIG welding. Manolo Valdes. Dama Caballero. Bronze. Client: Marlborough Gallery.

Mounting flange installation complete; sculpture installed on breezeway at 40 W. 57th St. NY NY. Manolo Valdes. Dama Caballero. Bronze. Client: Marlborough Gallery.

Surface conservation; stress-crack repair, precision TIG welding and oxidation removal/patina repair. Location: Breezeway at 40 W. 57th St. Ny, Ny. Manolo Valdes. Reina Mariana, 2005. Bronze. Client: Marlborough Gallery.

Stress-crack; before repair. Location: Breezeway at 40 W. 57th St. Ny, Ny. Manolo Valdes. Reina Mariana, 2005. Bronze. Client: Marlborough Gallery.

Stress-crack repair, crack beveled open for filling precision TIG welding repair. Location: Breezeway at 40 W. 57th St. Ny, Ny. Manolo Valdes. Reina Mariana, 2005. Bronze. Client: Marlborough Gallery.

Stress-crack repair, precision TIG welding. Location: Breezeway at 40 W. 57th St. Ny, Ny. Manolo Valdes. Reina Mariana, 2005. Bronze. Client: Marlborough Gallery.

Surface conservation; before oxidation (verdigris) removal/patina repair. Location: Breezeway at 40 W. 57th St. Ny, Ny. Manolo Valdes. Reina Mariana, 2005. Bronze. Client: Marlborough Gallery.

Surface conservation; after oxidation (verdigris) removal/patina repair. Location: Breezeway at 40 W. 57th St. Ny, Ny. Manolo Valdes. Reina Mariana, 2005. Bronze. Client: Marlborough Gallery.

Surface conservation; oxidation (verdigris) removal/patina repair. Location: Columbus Circle, Ny, Ny. Manolo Valdes. Reina Mariana, 2005. Bronze. Client: Marlborough Gallery.

After patina conservation treatment(s). Henri Moore. Reclining Nude. Bronze. Client: Wilson Conservation Group.

Before patina conservation treatment(s). Henri Moore. Reclining Nude. Bronze. Client: Wilson Conservation Group.

Patina conservation treatments complete. Henri Moore. Reclining Nude. Bronze. Client: Wilson Conservation Group.

Patina conservation treatments complete. Henri Moore. Reclining Nude. Bronze. Client: Wilson Conservation Group.

Surface conservation; in process. Beverly Pepper. Nuovo Twist. CorTen steel. Client: Marlborough Gallery.

Surface conservation; in process. Beverly Pepper. Nuovo Twist. CorTen steel. Client: Marlborough Gallery.

Surface conservation; in process. Beverly Pepper. Nuovo Twist. CorTen steel. Client: Marlborough Gallery.

Surface conservation; in process. Beverly Pepper. Nuovo Twist. CorTen steel. Client: Marlborough Gallery.

Surface conservation; restoration of polished and painted elements. Beverly Pepper. Prism. Stainless steel. 1969. Client: Marlborough Gallery.

Surface conservation (detail); paint damage/loss. Beverly Pepper. Prism. Stainless steel. 1969. Client: Marlborough Gallery.

Oxidation damage. Beverly Pepper. Prism. Stainless steel. 1969. Client: Marlborough Gallery.

Oxidation damage; underside of element(s). Beverly Pepper. Prism. 1969. Stainless steel. Client: Marlborough Gallery.

Polishing; oxidation removal in-process. Beverly Pepper. Prism. 1969. Stainless steel. Client: Marlborough Gallery.

Re-polished elements; oxidation removal in-process. Beverly Pepper. Prism. 1969. Stainless steel. Client: Marlborough Gallery.

Re-polished elements; oxidation removal in-process. Beverly Pepper. Prism. Stainless steel. 1969. Client: Marlborough Gallery.

Artist’s signature; engraving in-process. Beverly Pepper. Prism. Stainless steel. 1969. Client: Marlborough Gallery.

Artist’s signature; engraving complete. Beverly Pepper. Prism. 1969. Stainless steel. Client: Marlborough Gallery.

Post-paint restoration; disassembling of temporary heated paint booth construction. Beverly Pepper. Prism. 1969. Stainless steel. Client: Marlborough Gallery.

Catalogue image; conservation treatments complete. Beverly Pepper. Prism. 1969. Stainless steel. Client: Marlborough Gallery.

Surface conservation; graffiti removal. Beverly Pepper. Nuovo Twist, 2010. CorTen Steel. Client: NY Memorial Sloan Kettering Cancer Center.

Surface conservation; in-process. Beverly Pepper. Nuovo Twist, 2010. CorTen Steel. Client: NY Memorial Sloan Kettering Cancer Center.

Surface conservation; chemical and mechanical cleaning. Beverly Pepper. Nuovo Twist, 2010. CorTen Steel. Client: NY Memorial Sloan Kettering Cancer Center.

Surface conservation; precision blending and re-oxidation of repaired section. Beverly Pepper. Nuovo Twist, 2010. CorTen Steel. Client: NY Memorial Sloan Kettering Cancer Center.

Conservation treatments complete. Beverly Pepper. Nuovo Twist, 2010. CorTen Steel. Client: NY Memorial Sloan Kettering Cancer Center.

Before conservation. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Before conservation; detail of center weld discoloration. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Before conservation; patina loss and discoloration. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Before conservation; gouges along leading edge. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Surface conservation; in-process. Precision TIG welding used to fill in gouges. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Surface conservation; in-process. Welds sanded flush; geometry of leading edge restored. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Surface conservation; in-process. Scratches and gouges along bottom section of sculpture. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Surface conservation; in-process. Detail image of scratches and gouges along bottom section of sculpture. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Surface conservation; repair of scratches and gouges along bottom section of sculpture; in-process. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Surface conservation; in-process. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Surface conservation; in-process. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Surface conservation; in-process. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Conservation treatments complete. Beverly Pepper. My Circle. CorTen Steel. Client: Marlborough Gallery.

Repair of surface nicks across Proserpine’s lower leg. Francois Giradon. The Rape of Proserpine. Bronze. 1693. Client: Heckscher Museum of Art.

Detail of surface nicks across Proserpine’s lower leg. Francois Giradon. The Rape of Proserpine. Bronze. 1693. Client: Heckscher Museum of Art

After repair of surface abrasions and patina damage. Francois Giradon. The Rape of Proserpine. Bronze. 1693. Client: Heckscher Museum of Art.

Patina Conservation (After) of Kissing Couple, 1/3. Tom Otterness. Private Collection.

Patina Conservation (Before) of Kissing Couple, 1/3. Tom Otterness. Private Collection.

Patina Conservation (Detatil; before) of Kissing Couple, 1/3. Tom Otterness. Private Collection.

Surface conservation; in-process. Tom Otterness. Kissing Couple, 1/3. Bronze. 2013. Private Collection.

Surface conservation complete. Tom Otterness. Kissing Couple, 1/3. Bronze. 2013. Private Collection.

Surface restoration; gouge repair in-process. Tom Otterness: King and Queen. Bronze. Client: Marlborough Gallery.

Surface gouges and nicks on outer edge of Kings’s cape (detail). Tom Otterness. King and Queen. Bronze. Client: Marlborough Gallery.

Gouge on King’s cape filled via precision TIG welding. Tom Otterness - King and Queen. Bronze. Client: Marlborough Gallery.

Gouge on King’s cape corner after sanding welds down. Tom Otterness - King and Queen. Bronze. Client: Marlborough Gallery.

Patina replacement; precision blending and color matching, ensuring repairs are aesthetically cohesive with original finish. Tom Otterness. King and Queen. Client: Marlborough Gallery.

Conservation treatments completed. Tom Otterness. King and Queen. Bronze. Client: Marlborough Gallery.

Installation: Dag Hammarskjöld Plaza, 2nd Ave and 47th St. NY NY. Magdalena Abakanowicz. Walking Figures. Bronze. 2009. Client: Marlborough Gallery.

Removal of five damaged bronze mounting flanges; replaced with custom fabricated stainless steel flanges. Magdalena Abakanowicz. Walking Figures. Bronze. 2009. Client: Marlborough Gallery.

Damaged bronze mounting flange (detail); cracked and bent. Magdalena Abakanowicz. Walking Figures. Bronze. 2009. Client: Marlborough Gallery.

After removal of damaged bronze flange(s); edges prepped for installing new stainless steel flange(s). Magdalena Abakanowicz. Walking Figures. Bronze. 2009. Client: Marlborough Gallery.

Custom fit stainless steel flange; installation in-process. Magdalena Abakanowicz. Walking Figures. Bronze. 2009. Client: Marlborough Gallery.

Stainless steel flange installed; precision structural TIG welding. Magdalena Abakanowicz. Walking Figures. Bronze. 2009. Client: Marlborough Gallery.

Stainless steel flange(s) installation complete; welding heat distortion of patina on sculpture’s external surfaces repaired. Seen here mounted on shipping skid. Magdalena Abakanowicz. Walking Figures. Bronze. 2009. Client: Marlborough Gallery.