chemtoy MLB superballs

The 1970 Chemtoy superballs were found in boxes containing players from a single team, or a selection of players from either the National or American Leagues, like the example above. Photo courtesy REA.
Willie Mays

Cloudy, With a Chance of Superballs: Chemtoy's 1970 Surprise

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1952 Topps Baseball Card Find with Mantle's! The South Dakota Find! Starts May 3rd!