What is it? Item from a Korben-Gondorf Strassi

Found this hanging on the wall of a straussi that we visited last Sunday to listen to Celtic Music. Of course, that has nothing to do with the use of this item. Neither do the cow bell in the background or the rack underneath. What is it? If you know, add a comment. I'll publish the answer in a couple of days.

Hint: Although it could be used any time of the year, it was especially useful in winter.