Sagamore Bridge and Cape Cod Canal, Massachusetts (ERROR CARD)
Unused, old linen Curteich-Chicago card 8A-H2913. The front is as you see in the photo. The reverse, however, is mis-registered, printed upside down, and has a caption for the RCA Building in Rockefeller Center in New York City. There is also the red outline on the reverse of another apparent error. Clearly this happened during a switch in print runs. Hard to grade accurately, but for what it is, we give it Grade: 1