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Chuck RAdam: Not sure which nonsports experts you ran it by but I would think anyone who specialized in prewar nonsports would have answered this one for you pretty quickly. For vintage nonsports, valuable accessories to the ACC are several of the Sport American Nonsports guides by Chris Benjamin. In particular the one with the white cover which deals with the R cards and the one with the purple cover which also covers many of the E cards (though not the Goudey movie stars you had).