The pictured card is from one of two sets that Sunbeam (Gravem-Inglis Bakery) did featuring Stockton Ports players of the California League..... The backs are printed in black ink, and although it is possible to reproduce any card, I haven't see any from these two series. There are a number of cards found with / without the radio ad. John Rumierz was working on documenting these, but I'm not certain how far along he got
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