|Jose Canseco: 1990 MLBPA Baseball Buttons|
|Dwight Gooden: most likely also 1990 MLBPA|
|Kevin Mitchell: stadium giveaway|
I think you've just seen at least half of my collection of player buttons. But back to this one:
Steve Garvey looks pretty happy here. The text at the bottom reads: Sports Photo Assoc., Hawthorne, N.J. (c) 1978. The buttons were sold as late as 1981 (see this post about distribution methods). The above image is my scan, but I had to steal this one:
If you follow the link, you'll understand.
I have a feeling SPA sold their photos to Fleer, and must have been looking to distribute buttons for a few years. What better way to sell off a bunch of buttons than making a package deal with the company that wanted your photos?