There are 2 William Knickerbocker trading cards tracked on HobbyCardIndex, spanning Baseball. The most valuable is the William Knickerbocker at $2.86 raw.

Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/william-knickerbocker

William Knickerbocker Cards

2 cards · Baseball

All William Knickerbocker Cards

William Knickerbocker

1936
$2.86

William Knickerbocker #NNO

1934
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