Amanda Trienens (American conservator, active 21st century)

Indoors 1 GPC 2 Redwing Mason 10% by weight limeproof black, from conservation of Jene Highstein's Black Sphere

21st century

9.5 cm diameter

cement, plastic, paint

Test paint samples used in conservation process of Jene Highstein's "Black Sphere."

Gift of Christine Mehring

Amanda Trienens (American conservator, active 21st century)

Beeck Outdoors, from conservation of Jene Highstein's Black Sphere

21st century

9.5 cm diameter

cement, plastic, paint

Test paint samples used in conservation process of Jene Highstein's "Black Sphere."

Gift of Christine Mehring

Amanda Trienens (American conservator, active 21st century)

Beeck Black C-655, from conservation of Jene Highstein's Black Sphere

21st century

9.5 cm diameter

cement, plastic, paint

Test paint samples used in conservation process of Jene Highstein's "Black Sphere."

Gift of Christine Mehring