A small ad a newspaper advertising a Keystone projector. From the early 1920s.
From my private collection.
Keystone 1920s Ad
Collecting Keystone
The History of Keystone Manufacturing Company From 1919 to 1967
The History of Keystone Manufacturing Company From 1919 to 1967
A small ad a newspaper advertising a Keystone projector. From the early 1920s.
From my private collection.