THE JERSEY FITS THE 1979 STYLE AND DON PLAYED IN 1980 AND WORE #43. IN MY OPINION, THIS JERSEY WAS EITHER USED IN 1979 SPRING TRAINING OR HE WAS CALLED UP IN’79 AND NEVER PLAYED. OR – IT WAS ALSO USED IN 1980. I WISH I HAD A MORE SPECIFIC ANSWER. PLEASE SEE ALL PHOTOS.