Hockey Hall of Fame referee (1915-2009) who pioneered the system of hand signals for penalties which is now used in all hockey games internationally. Color 4 x 6 Hockey Hall of Fame postcard photo of Chadwick in his referee’s uniform, signed in black felt tip. In fine condition, with a bit of light contrast to signature, as well as some light irregular ink adhesion. Pre-certified Steve Grad/PSA/DNA and RRAuction COA.
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