On 3 May 1921, Danzig issued this set of airmail stamps. The 10 Mark value was issued on 15 May 1921.
The stamps are primarily found with a vertical large waffle watermark (2 X), but rarer horizontal watermarks (2 Y) exist of all values.
For similar values with different watermark and/or additional values, see MiNr. 112-118 and MiNr. 133-137.