FDC produced for the Souvenir Sheet issued on May 19, 1947 in connection with CIPEX, in honor of the 100th anniversary of U.S. postage stamps (Sc. 948). The Sheet features reproductions of Sc. 1 & 2, the 5c Franklin stamp and the 10c Washington stamp. Blue & gold cachet produced by Fleetwood, designed by Dorothy Knapp, featuring portraits of Washinton and Franklin, plus a large Masonic insignia. Listed as No. M-35 in Mellone's Specialize d Cachet Catalog of First Day Covers of the 1940s. Unaddressed. Sealed back flap. Includes an informative stuffer. Key Words: Washington - President - Presidential - Franklin - trains - airplanes - automobiles - ships.