[APOLLO 11]. PAUL CALLE. A GROUP OF 3 APOLLO 11 POSTAL COVERS WITH ORIGINAL MISSION SKETCHES, SIGNED BY PAUL CALLE

3 sketches, pencil on paper envelopes, 9 ⅝ by 6 ¼ inches, each signed "Paul Calle" and numbered "1/6" in pencil, with "First Man on the Moon" stamp cancelled "FIRST DAY OF ISSUE", Moon Landing postmark dated July 20, 1969, and Washington, D.C. postmark, dated September 9, 1969.