wonderful selection of mostly American first flights, couple of zeppelin covers, 1918 cover with "Aviation Concentration Camp, Camp Dick, Fair Park, Dallas, Texas" handstamp, 1918 postcard with "Pensacola Fla. Aeronautic Br." datestamp, 1933 Mattern and Griffin round-the-world flight cover with handwritten letter from Mattern, and much more, mostly fine to very fine, words cannot do this lot justice so we recommend a close inspection