Lot
1673 
1930, Graf Zeppelin Issue Covers, group of 9 flown Zeppelin covers comprising solo frankings of C13 (4): two uses on card and two on cover, C14 (3): two on card and one on cover, and C15 (2): two on cover. Scott No. C13-C15 Estimate $750 - 1,000.
Realized: $1,600