I've never seen it before. Perhaps it's unique. It's from the early 1900s at the latest. The nice thing about glass slides and negatives is you know they are antique, because they switched from glass to plastic film in the 1920s-30s. Glass = old.
It's a nice pickup and my offhand guess is it's from the early 1900s, but if you research it and find it's from the 1800s, it would be a great pick up.
Last edited by drcy; 03-21-2016 at 11:52 AM.
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