I've owned the premium photo shown here for 10-15 years. I'd always intended to add it to the Standard Catalog of Baseball Cards, but could never lay my hands on it when I was in that mode.
No, it's not technically a baseball "card," but it is consistent with the hundreds of items of collectible baseball ephemera that we included in the Big Book as the years went by.
This is a 1956 or 1957 (the only years Minoso and Doby were together on the White Sox) premium photo from Philco, obviously intended to advertise one of their new-fangled transistor radios. The photo was taken in old Comiskey Park.
I believe this 8-1/2" x 10-3/4" premium was produced by Philco with more than one retailer's name printed at bottom.
The picture is printed on semi-gloss light card stock; the signatures are facsimile autographs. The back is blank.
I put this picture up for sale on eBay, closing on Oct. 3. If it was a baseball card, I would have graded it Good because of a horizontal crease at center and bumps at the corners and edges. It sold for $15.