There are 6 John Gelnar trading cards tracked on HobbyCardIndex, spanning Baseball. The most valuable is the John Gelnar #604 at $32.65 raw.

Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/john-gelnar

John Gelnar Cards

6 cards · Baseball

All John Gelnar Cards

John Gelnar #604

1971
$32.65

John Gelnar [Red Ink] #ROA-JG

2020
$15.02

John Gelnar #ROA-JG

2020
$11.95

John Gelnar #393

1970
$2.69

John Gelnar #604

1971
$1.99

John Gelnar #393

1970
$1.75

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