Art Nouveau Postcard. Cornflowers day Mulhouse Thuringia 1911.

AK, old collectible postcard cornflowers day Mulhouse Thuringia 1911.

Cornflowers day Mulhouse Thuringia 1911.

Art Nouveau Postcard from Mühlhausen in Thuringia, 1911.

Shown is the cornflower day with stylized illustrations of cornflowers and the national emblem of the German Empire, the Black Cross.