Hi Jeffrompa
Thanks for sharing that 1954 one. I am going to have to check my later supplements but all of the earlier ones say "Supplement" on them. Does that one say that on one of the other pages? The reason I ask is because this one you showed looks like more of a series to me, with the volume and no. . It does have a lot of price changes so I can't imagine it being anything else, unless it's the first price guide, pre-Beckett
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Also, I would have thought it would say "American Card Catalog" and not "Collector"?