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"Radio at Garfield Hospital, Washington, circa 1924." View full size. National Photo Company Collection glass negative, Library of Congress.
I think they're listening to an early interactive radio program.
Host: Good afternoon and welcome to "How to Play Checkers." All right then, each player choose a color. Player one, move a piece. Player two, move a piece. Player one . . .
Yes, a crystal set. Very easy to make. Used right into the 40's too with soldiers cobbling them together during WWII with stuff lying about. Lots of instructions on the net if you look up "foxhole radio."
Are they listening to some show or ballgame while playing checkers or are the activities somehow connected?
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