Airmail Stamps & Covers, 1918-1938. Mounted on quadrille pages and including C1-3 center line blocks, C1-2 top arrow blocks and C3 block of 12 with 2 plate #'s, Top & Arrow; bottom plate blocks of 6 of C7-9, C10, top C11, bottom C12, C13-15 Zeppelins on flown 3 covers New York to Germany to Lakehurst with 65¢ block of 4, $1.30 pair and $2.60 single; red circular Südamerikafahrt cachets and green Lakehurst Zeppelin receivers on reverse; C18 with mint block of 4 (2 n.h.) and flown Chicago to Akron cover with Expo cachet; C21 plate # block of 6; C22 block of 6; both on separate cacheted First Day covers; very fresh and attractive collection, stamps exceptionally well centered, mixed condition on a few items. Estimate  $2,000 - 3,000. $0