ROCKET MAIL Stamps, covers & book; unused imperf stamps incl 1935 blue "First American Mailrocket Flight" stamp (E-Z #5A1); both green & red stamps for Feb 1936 "First American Rocket-Airplane Flight" w/ Kessler stationery (#8A1, 8A2); PPC from same Feb 1936 flight w/ red stamp and green cachet, card is photo of plane; finally, 1958 hardcover book (#288/500) by Oliver Rumbel commemorating the July 2, 1936, first International Rocket Mail US-Mexico (retails online at $135+); all in VF condition [see addl web photos] (Image)