They're called stereoscope cards, and as you might guess from the size of your stash, they're pretty common. The most valuable are ones of famous people or well-known events. You can search eBay for sold listings of stereoscope cards to get an idea of values.
kathiec
·2 years agoThey're called stereoscope cards, and as you might guess from the size of your stash, they're pretty common. The most valuable are ones of famous people or well-known events. You can search eBay for sold listings of stereoscope cards to get an idea of values.