Title: [Two Seated Men with Calipers, T-Square, and Compass]
Creator: Unknown
Date Created: 1870s–80s
Physical Dimensions: Image: 6.5 x 5.4 cm (2 9/16 x 2 1/8 in.)
Mat: 8.3 x 7 cm (3 1/4 x 2 3/4 in.)
Case: 1.1 x 9.3 x 7.9 cm (7/16 x 3 11/16 x 3 1/8 in.)