The one on the left: Looks like a 1988 Topps Card. It's not! Its on white card stock and is perfectly cut. I thought it was a Broder card but most of them are borderless.
The one on he right: Looks like 1975 Topps. It's not! Junior would have been 6 years old. This card came out of Baseball Cards Magazine in 1991. I cut it out of its panel with a very sharp knife and a straight edge.
Left: Cleverly numbered to 793 as if it was in the actual set. Fun factoid includes pointy hands just like the original 1988's.
Right: Includes cartoon trivia with upside down answer. Too bad the answer is also right side up in the cartoon itself. And the answer appears again in the info below his name. Baseball Cards magazine's research department must have been weak. Never know Junior and Senior's first name was George.
Any info on the card on the left would be swell!
Update: Found this ebay listing. Seller has 7 available for $49.99 each. Anybody have any info on American Sports cards?