USPS. First Day of Issue Ceremony Invitation to the dedication of Scott #1147-48 4c & 8c Champions of Liberty issue - Thomas Garrigue Masaryk commemorative stamps, FDOI, March 7, 1960, Washington, D.C. First president and founder of Czechoslovakia, his death in 1948, along with the resignation and death of President Eduard Benes, marked the end of the Czech Republic, closing the last gap in the Soviet Iron Curtain. This invitation has not been serviced. Invitation measures 7" x 4 3/4".