lot no. 133, HELIGOLAND cat. no. 19Aa  | ⇦ ⇧ ⇨ |
1879, 1 M. blue-green / gray black / medium rose, on the back rubbed spot, very fine, photo expertize Schulz, Michel 300.-1879, 1 M. blaugrün/grauschwarz/mittelrosa, rückseitige Schürfung, feinst, Fotobefund Schulz, Mi. 300.-