"KEYSTONE MOVIEGRAPH AUTHORIZED OPERATOR LICENSE BUTTON PLUS TICKET
1.25" blue on white button which came along with c. early 1930s home use 16mm movie projector from the Keystone company. A number of "Admit One" cardboard tickets, 1.25x2" came with each boxed projector. Ticket has tiny edge nick and puncture at one corner but displays Exc. Button is N. Mint with its special backpaper.
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