Optic clock
Object type: Optic clock
Department: Modern and Contemporary Art
Artist: Joe Colombo|Ritz-Italora
Artist bio: Italian, Milan 1930–1971 Milan| 
Artist role: Designer|Manufacturer
Artist nationality: Italian|Italian
Date: 1970
Medium: Plastic and metal
Dimensions: 3 1/4 × 3 1/4 × 3 1/4 in., 0.5 lb. (8.3 × 8.3 × 8.3 cm, 0.2 kg)
Classification: Horology
Credit line: Purchase, David Kiehl Gift and funds from various donors, 1995
Accession year: 1995