On Tuesday I got not only four postcards but also a cover from Germany.
Peony (issued 04-12-2014)
Inside were two postcards.
One of them shows the St. Jacob's church in Köthen in Saxony-Anhalt. Its crypt includes the graves of the Dukes of Anhalt-Köthen. It is part of the Lutherweg.
On the back of the card is a map of the Lutherweg.
The other card I will use later to get a special postmark.
Thank You very much Reinhart!