Feldpost numbers

Hi all

Does anyone know what unit these feldpost numbers belonged to?:

50 978

42 140

50 585

39 109

It would be a great help for my research.

Is there any sites on the internet, where i can find feldpost numbers?

Danke;
Sverri

 

I found it out.

The "feldpostnumbers", where not really FPN, they where a number, given by DNSAP(Danish nazi parti) to the Danish members, that im researching. (im not so good at explaining in English )

Thanks anyway;
Sverri