Two ophthalmologic objects and a group of 11 men, c 1880's (?)-- likely a gathering of opticians or students. The case is marked, Calvin B. Burch, Graduate Optician's AUDEMAIR'S TEST LENSES, by Spencer Optical Manufacturing Company. A large display titled "Ocular Refraction by Heath"
Photographer: Pach Bros. , 935 Broadway, New York
Contemporary frame, wood backed. Some darkening. Frame plaster edging chipped.
Image size: 13.5 " x 10" (frame: 24" x 20")