Gary- what I'm thinking, and this could change, is that Peck and Snyder had the Creighton image glued to a blank card, and then affixed a pre-printed ad to the back themselves. I think the chances of finding a biography in a newspaper, for example, that fit the exact height and width of the card, and fortuitously included the company name and street address at the bottom, is remote at best. If that biography was not part of the original mount, as has been suggested, then I believe P & S had it specially made to fit onto the back. I admit it makes little sense to have constructed this card in two steps, but I don't believe that back was randomly found at a later date.
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