Paul Calle
... that while in space, Apollo 11 astronauts hand canceled the die proof of a stamp designed by Paul Calle to commemorate the first manned moon landing?
... that while in space, <a href="./Apollo_11" id="mwFXU" rel="mw:WikiLink" title="Apollo 11">Apollo 11</a> astronauts hand canceled the <a href="./Die_proof_(philately)" id="mwFXY" rel="mw:WikiLink" title="Die proof (philately)">die proof</a> of a stamp <i id="mwFXc">(pictured)</i> designed by <b id="mwFXg"><a href="./Paul_Calle" id="mwFXk" rel="mw:WikiLink" title="Paul Calle">Paul Calle</a></b> to commemorate the first manned moon landing?