On 29 September 1920, Danzig issued this set of airmail stamps featuring overprints on Danzig MiNr. 6, which it itself an overprint of Germany MiNr. 145.
Airmail Overprints
MiNr. 50
MiNr. 52
MiNr. 51
On 29 September 1920, Danzig issued this set of airmail stamps featuring overprints on Danzig MiNr. 6, which it itself an overprint of Germany MiNr. 145.
