The cards in this 660-card set measure 2 1/2" by 3 1/2". This set is essentially the same as the regular 1973 Topps set, except that the words "Printed in Canada" appear on the backs and the backs are bilingual. On a white border, the fronts feature color player photos with rounded corners and thin black borders. The player's name and position and the team name are also printed on the front. An "All-Time Leaders" series (471-478) appears in this set. Kid pictures appeared again for the second year in a row (341-346). The backs carry player biography and statistics in French and English. The cards are numbered on the back. The backs appear to be more "yellow" than the Topps backs. Remember, the prices below apply only to the O-Pee-Chee cards -- NOT Topps cards which are more plentiful. Unlike the 1973 Topps set, all cards in this set were issued equally and at the same time, i.e., there were no scarce series with the O-Pee-Chee cards. Although there are no scarce series, cards 529-660 attract a slight premium. Because of the premium that high series Topps cards attract, there is a perception that O-Pee-Chee cards of the same number sequence are less available. The key card in this set is the Mike Schmidt Rookie Card. The cards were packaged in 10 count packs with 36 cards in a box which cost 10 cents. Other Rookie Cards of note in this set include Bob Boone and Dwight Evans.