Sale No: 159
Lot No:1441
Symbol:**
Cat No:C24-25 Var.
#C24-25 Var., 1931 1P-2P Graf Zeppelin overprints, imperforate, choice horizontal pairs, pristine o.g., n.h., very fine and rare; only 50 sets were produced, signed Kessler and accompanied by his 1948 certificate. (Image)