Nicklaus cards
 

For one of the all time great athletes, he has relatively few early cards. Nothing that I know of from the entire 1960s. 1971 Barratt, 1973 Panini, and then nothing until late 70s Sportscaster. Seems strange for such a major, major figure. I guess there just weren't many golf cards, although Palmer has an early 60s postcard, a 1865 Bancroft Tiddlers, and a 1968 Mira Tuttosport (very scarce).

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Not a card, but I have this early pga tour slide of Jack.

Beautiful cards, Peter. Thanks for sharing. Centering can definitely be an issue on both the 1971 and 1973 cards. Your 1973 looks particularly nice!