Cracked original 1930s Melitta Nr. 102 Schnell-filter Deutsches Reichs Patent coffee funnel for 3-6 cups. You can actually still buy Melitta funnels at many American grocery stores. These have become very desirable in the past few years as vintage lifestyle people have started adopting them. This one is the pre-war version. There is a small chip at the edge with a hairline crack running down one side. It would likely still function without leaking, but it is not something you probably want to use often. See photos.
I use one of these as my everyday coffee maker. It is rather nice to think that my coffee maker is over 80 years old and still doing its job. Its also fun that the filters are not only still available but still sized the same way. Just buy Melitta 102 filters.
The advertisement in the photo is from the November 1940 issue of Frauen Warte.
