Lot
1163 
(Oklahoma) Gray Horse, Okla., Mar 24, 1930, two cds's on reverse of registered cover to Indiana, franked with 1927, 1¢ green + 1928, 2¢ Aeronautics, block of 4 + 1929, 2¢ Lock, block of 4 (632+649+681) all tied by three strikes of fancy Gray Horse cancels, registry handstamp and receiving backstamps, Very Fine and rare; with 1987 M.W. Martin attest. Estimate $300 - 400.
Realized: $250