U.S. Senate Committee Post Office & Civil Service

This vintage Official Stipex first day cover honoring the 'Sixth International Philatelic Exhibition in Washington D.C.' canceled on May 21, 1966, is hand signed by the following thirteen members of the U.S. Senate Committe on Post Office and Civil Service circa 1960's: Russell (SC), Harthe (Ind), Yarbrough (TX), McGee (WI), Burdick (MD), Monroney (OK), Simpson (WY), Bible (NV), Fong (HI), Carlson (KS), Brewster (MD), Randolph (WV), Boggs (DE).