A total of five different sets have all been designated as 1933 V304 O-Pee-Chee cards. The Each set (series) has its own separate designation – V304-A, V304-B, V304-C, V304-D, and V304-E. These series designations are printed on the backs of the cards along with a card number.
Cards are colorful with bold backgrounds, a black and white player image, and the player’s name. In addition to the series designation and card number, backs include bilingual biographies in English and French.