San Francisco’s Golden Gate Bridge turned 75 recently. To celebrate the event, USPS is offering a commemorative envelope. The limited-edition envelope features a special pictorial cancellation designating ZIP Code 94115 as the “75th Anniversary Station,” a silk screen print of the bridge, and the San Francisco skyline as it looked in 1937.

Each commemorative envelope sells for $5. Envelopes can be ordered by sending a check or money order, payable to “Postmaster,” to San Francisco Marketing Attn: Golden Gate Bridge 75th Anniversary Cachet, PO Box 880188, San Francisco, CA 94188-0188. Include your name and return address with your check. The envelopes are available while supplies last. Allow 7-10 days for processing.