France, Military Aerogrammes, 4 used, incl. 2 WWI aviation school letter cards (Kessler 102, 102a), plus 2 military air cards from WWII, Fine to Very Fine. Estimate $150-200.
Harmer-Schau Auction Galleries, Inc. 1333 North McDowell Blvd., Suite B • Petaluma, California 94954
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