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Magnify the picture of the edge. It might be a JPG artifact, or a 2mm crack. Actually, two of them.

Value-based pricing is a difficult thing. But there is an entry about it in the FAQ conveniently linked at the top of this page. You should look it up.

There are two things you can do with this...

DISPATCH. (1896, no. 12711): Peter Ludwig
Schmidt, Elberfeld. Registry class: 9b.
Style: roman

I'd date it prior to 1929.