n.d.
Alethoscope Day/Night photographic view of the Arch of Constantine, Rome.

Alethoscope view
12 x 16 in
 
Stereographica - Antique Photographica
Courtesy of Bryan and Page Ginns (#18 / 43)
 
The Alethoscope was made and sold by Naya in competition with Carlo Ponti's Megalethoscope in the 1860/70's. These views differ from the Megalethoscope views which are curved. The Alethoscope views are flat and much scarcer.
 
LL/21568