The International Bridge between Sault Ste. Marie, Mich., and Sault Ste. Marie, Ontario, was officially opened to traffic on Oct. 31, 1962.

In honor of the occasion, the International Bridge Administration (IBA) will be issuing limited edition I.Q. Prox commuter cards featuring historical photos of the 45-year-old span, beginning Oct. 16. Card designs are shown below.

Cards can be purchased at the bridge.