A LARGE PONTIOSCOPE ITALY CA 1860 A very large stereographoscope made by Carlo Ponti in the 1860s. Ponti, famous for his Megalethoscope, made a few differnt models for transparent views and prints. This model is huge! Lenght ca 80 cm, height ca 80 cm! Diameter of large lens, in a rotating frame, is 27 cm.
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