We saw “Trinkhalle” and we thought “beer”, but not so:  Wikipedia tells us that “The Trinkhalle (pump house) in the Kurhaus spa complex was built 1839–42 by Heinrich Hübsch in a complementary architectural style as the spa’s main building. The 90-metre arcade is lined with frescoes and benches. The spa waters are said to have curative powers.”  Good beer cannot be too far away, though.  The card was mailed long ago and has two clear postmarks though we can’t interpret them; the stamp is also still there.  Creased upper right corner, more visible on the back than on the front.  Grade: 2