CLICK ON IMAGES TO ENLARGE

The Piatnik Sport Kwartet set had 9 series of 4 cards, for a total of 36 cards, just one of which featured basketball (#5D) ​I have determined that this set features the 1952 Helsinki Olympics by looking at some of the other playing cards. The discus throw card, #1D, features 1952 Soviet Gold medal winner Nina Romashkova, and the figure skating card, #8C, features the 1952 British Gold medal winner Jeannette Altwegg.

Measurements: 2.75" x 4.25"

Basketball Quartet Austria Playing Card Vintage
Basketball Quartet Austria Playing Card Vintage

FERD. PIATNIK & SOHNE WIEN XIV No. 294 SPORTS QUARTET #5D BALL GAMES, BASKETBALL (AUSTRIA)

Rare Austria Basketball Card
Rare Austria Basketball Card

1958