Watermarks of German Stamps (German Reich)
Watermarks were used as a security against damage of the postal system. To make the watermark visible, one lets drip petrol onto the stamp, or uses a watermark seeker.
Watermarks: WM1 = Rhomb / WM2 = Waffle / WM3 = Imperial eagle / WM4 = Swastikas / WM5 = German order cross
Watermark 1 (1905 - 1923)
|

WM1 - Rhomb
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Watermark 2 (1921 -1933)

WM2 X - Waffle (standing) |

WM2 Y - Waffle (recumbent) |
Watermark 3 (1930)
Imperial Eagle
No Picture
IPOSTA |
Watermark 4 (1933 - 1941)

WM4 X - Swastikas (left) |

WM4 Y - Swastikas (right) |
Watermark 5 (1935)

WM5 |

WM5 - German order cross |
german stamps watermarks - german reich |