Friday Find: These 1957 stamps honored the U.S. Coast and Geodetic Survey

An envelope with an image of U.S. Coast and Geodetic Survey (USC&GS) employees surveying, the USC&GS seal and flag, and the words, "150th Anniversary U.S. COAST AND GEODETIC SURVEY 1807-1857."   On the envelope are a USC&GS stamp and a first day of issue cancelation. (Addressee name and address have been blurred out for privacy.)

An envelope with an image of U.S. Coast and Geodetic Survey (USC&GS) employees surveying, a USC&GS stamp, and a first day of issue cancelation. Many of these stamps and envelopes survive today, including some mailed across the country. (Addressee name and address have been blurred out for privacy.) (Image credit: NOAA Heritage)