There are 1 Standardized Rules trading cards tracked on HobbyCardIndex, spanning Baseball. The most valuable is the Standardized Rules #13 at $13.50 raw.

Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/standardized-rules

Standardized Rules Cards

1 cards · Baseball

All Standardized Rules Cards

Standardized Rules #13

1974
$13.50

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