Any idea what these postcards are?

[desiro]

Picked these up in Prague a few years ago,they look official but i havent got a clue what they are for.
Any ideas?

Andy

[desiro]

b

[Gerdan]

These are postcards written from different German civil registry offices (Standesamt) to priest offices to inform about marriages, births or deceases.

Gerdan

[Military]

still, nice piece of history!

[desiro]

Thanks for the info Gerden,a couple of the cards are addressed to Catholic offices.

A mystery solved!