The interior of replica cable car trailer 209, as it looked on October 21, 1956. While the sign inside the car says it was used on State Street between 1880 and 1906, in actuality, this was built by the Chicago Surface Lines in the early 1930s, although it includes original parts. Mail car 6 is behind this car. That one is original, but may have been renumbered. (William C. Hoffman Photo)

The interior of replica cable car trailer 209, as it looked on October 21, 1956. While the sign inside the car says it was used on State Street between 1880 and 1906, in actuality, this was built by the Chicago Surface Lines in the early 1930s, although it includes original parts. Mail car 6 is behind this car. That one is original, but may have been renumbered. (William C. Hoffman Photo)