Lot 501
  
U.S. Airmail, 1930 Graf Zeppelin Set Complete in Plate Blocks, #C13-C15, L.h., bottom plate numbers with various selvage lengths, $1.30 n.h., all with usual gum skips, fine to very fine, seldom offered. Cat. $17300.
Estimate $8,000-9,000.
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| Realized $8,625 |
