covers from Germany

On Wednesday I got not only three postcards but also two covers from Germany.

Stamp:

Chocolate Cosmos (issued 03-12-2015)

with a special postmark about the 150th anniversary of the railway in Oldenburg

Stamp:
Chocolate Cosmos (issued 03-12-2015)
with a special postmark about the 350th anniversary of the Personal Union of Denmark and Oldenburg