Posts: 86
From: Hope, NJ USA
Registered: Mar 2013

posted 04-01-2018 07:25 PM               

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I have a couple of hundred envelopes postmarked June 20, 1974 but the cancellation reads "First Lunar Landing - 5th Anniversary July 20, 1974."

Was June 20 the first day of use of the cancellation? Otherwise what would explain June 20 vs July 20? Thanks for the help.

Posts: 660
From: Northville MI USA
Registered: Aug 2005

posted 04-01-2018 08:01 PM               

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Yes, likely first day of use at Denver, Colorado; Chicago, Illinois; Houston, Texas; Huntsville, Alabama; New York, New York; U.S. Postal Service, CA; U.S. Postal Service, MA; U.S. Postal service, WA; and Washington, D.C.

Though I am not sure of the first day of use, the last day of use was August 20, 1974 which makes June 20 to August 20 a likely usage.

Posts: 86
From: Hope, NJ USA
Registered: Mar 2013