Hi to all, Patrice has it pretty much nailed down and the pictures show the difference! One of the major differences is the radius on the external rim of the knobs? DWM is approx. 3/32" radius (more rounded) and Erfurt is approx. 1/16 radius.. (sharper) This gives the appearance of longer dimension across the bottom as well as the Erfurt bottoms almost always exceed the print... Almost all Erfurt bottoms are quite dark as well.. There are probably more differences, but these are the ones I try to address when filling a customers order.... Best to you, til....lat'r.....GT
