There are 2 Referee Signals trading cards tracked on HobbyCardIndex, spanning Football. The most valuable is the Referee Signals #196 at $5.40 raw.

Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/referee-signals

Referee Signals Cards

2 cards · Football

All Referee Signals Cards

Referee Signals #196

1966
$5.40

Referee Signals #196

1967
$2.95

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