To me, this is funny since it is unusual by today’s standards – to have the Good Luck sentiment merging with the Merry Christmas sentiment. This is a wonderful card for that reason, but also the colors are great and the design is great: the house scene, the gold-tone overlay, the holly, and especially the wonderful likeness of window pane frost. As to the date of this card: According to The Chicago Postcard Museum, postcard printing in Germany stopped prior to 1915 due to WWI. And according to The Metropolitan Postcard Club of New York City, publisher Richard Behrendt operated from 1906 – 1930, and also dealt in toys, novelties, stereo-views and greeting cards. See below for the web addresses of these two excellent websites.
Divided back, unused postcard. Printed in Germany. Circa 1907 – 1915. Publisher Richard Behrendt, San Francisco, CA. #1785.