Looks like these were part of a series of books by Bert Sugar (you may have heard of him as a boxing promoter). The ones I specifically have were from a 1978 book featuring 92 reprinted cards of Hall of Famers ranging from T-205's, T-206's, Goudey, Playball, National Chicle, Cracker Jack, Topps and others. My guess is these were the Hall of Fame members at that time. Interesting piece of memorabilia. I've found intact books at various book stores online for less than $10, and similar pricing on eBay.
Jeff (jaysee88)