Jay Publishing issued these 5 x 7 photos from 1958 - 1965. There are two types: the earlier years have a sans serif typeface and the later ones have a serif typeface. There are 1,472 known photos. They were sold in poly packs at drug stores, by mail-in, and at stadiums. The photos were sold by teams (with a few exceptions for All Stars.) There are multiple photos/poses of many players. Some photos were repeated from year-to-year. There are also varying degrees of scarcity. The 1961 issue is fairly common due to a large "find" of poly-packs that I believe occurred in the Western US. This has driven down the price of the photos and poly packs from that year. A common might sell from $1 - 3 on eBay; a star such as a Clemente or Mantle might go for $20+ The poly packs from 1961 might go between $15 - 25 depending on the team and the relative scarcity. The brown envelope with photos might go for $50 - 75 in nice condition.