Saw this cover offered on
ebay the other day and thought I would resurrect this thread since we discussed appropriate venues for expertizing certain areas of German philately.
This cover has an APS certificate stating that Germany C44 is "genuine in all respects". I am by no means an expert, but it is clear that this stamp is a forgery. All German zeppelin stamps issued between 1928 and 1933 (Scott C35-C45) were comb perforated. As you can tell from the close up of the cancelled stamp, this example is line perforated. I have already conferred with PostmasterGS and he is in agreement with this conclusion.
Caveat emptor!
http://www.ebay.com/itm/Germany-C44...AOSwBOtY~2Dp