German WW2 Ink blotter Reichs post ministerium

This type of blotter was ordered by the Reich Ministry of Post (Reichspostministerium RPM) and was provided to the military postal services. It has a plate with the name of the ministry and the five-digit code of the military unit to which it was intended. During the war, in order to maintain the secrecy of the movement of troops, each battalion received a five-digit identification code called Feldpostnummer and a letter corresponding to the type of troops- L for Luftwaffe, M for Marines.

In the German Post Museum in Berlin, you can check the authenticity of the item as well as the correspondence of the five-digit code, which confirms that this is a military-use item.

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