When it opened, it was the first concrete-and-steel stadium in baseball. Home of the Philadelphia Athletics from 1909-1954 (when they moved to Kansas City), the Philadelphia Phillies from 1938-1970 (when they moved to Veterans Stadium), and some games of the Negro League Philadelphia Stars in the 1930s and 1940s (records are sketchy). Hosted several NFL games in the 1920s, and the Philadelphia Eagles from 1940-1957 (when they moved to Franklin Field). It cost $457,167 to build, and had 23,000 seats when it opened.
The exterior of the park in 1913. Connie Mack's office was the second floor of the rotunda from the park's opening until he died in 1951.
A seating diagram for the park late in it's life.
Pictures and some info from conniemackstadium.com.
The exterior of the park in 1913. Connie Mack's office was the second floor of the rotunda from the park's opening until he died in 1951.

A seating diagram for the park late in it's life.

Pictures and some info from conniemackstadium.com.