They appear to be pencil clips, you would slide them up your pencil and then you would have a way of clipping your pencil to your shirt. I have no idea where yours came from or when, but pencil clips were quite common to find as cracker jack prizes. They do look an awful lot like the 1969 MLB pins design, so I would say there is a good chance they were distributed somewhere around the late 1960's
Last edited by Rascal1010; 10-06-2019 at 07:46 AM.
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