I just found these in my house a few weeks ago. I bought them at the ballpark in 1967, and they have been in a folder in my desk since the 1970s (along with some old baseball card catalogs which I will be posting in the near future).
Here are 6 stars from the 1967 team. I don't know if these were the only ones issued, or if there were photos of all players, which you could collect in packs of 6. (Maybe Jim at The Phillies Room blog has these, or some more info about them.) Each photo is 5" x 7".
Jim Bunning was the ace of the pitching staff, but that didn't induce the team to make sure the negative wasn't reversed before printing these. Chris Short was the left-handed ace, and was just coming off a 20-win season.
Larry Jackson came over from the Cubs in early 1966 in exchange for Ferguson Jenkins, and was the team's #3 starter from 1966-68. Cookie Rojas upgraded from Jack-of-all-trades to starting 2nd baseman by the mid-1960s.
Dick Groat was acquired from the Cardinals along with Bill White and Bob Uecker before the 1966 season. Groat was the regular SS in 1966, but missed the first 2 months of 1967. Upon his return, he was sold to the Giants. Richie Allen was the Phillies' superstar slugger from 1964-69, and returned to the team for 1975-76.