Re: 1915 Erfurt Artillery...?
I have a simular problem. I have a 1917 DWM arty. It has British proof marks under the barrel. But it also has what appears the be Erfurt proof marks on all the toggle parts as well as an Eurfurt proof mark on the right side of the frame thus creating a fifth proof mark. I don't remember ever reading that Eurfurt did any reworks. All the serial numbers appear authentic and matching. The bluing appears worn but original.
Big Norm
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