807,293
The 1973 Topps Baseball Card set, the last year to be issued insubsets, features 660 standard size cards, which measure 2½" by 3½". The subsets for the 1973 Topps Baseball cards are league leaders (61-68), playoff highlights (201-202), World Series highlights (203-210), rookie stars (601-616), and All-Time leaders (471-478). The high number series (529-660) is slightly more expensive to collect.
The key rookie cards from this set include #615 Mike Schmidt.
2010 Who's Who in Baseball