Nice artillery, you are about 25-75 miles from me
I will be at the Allentown show in a couple of weeks, me and Tom W set up a couple tables each show, I think row N1 and N2
Erfurts were only made in 1914 as artilleries; and although fewer made, surprisingly you see a lot of them. The stock is worth from $400-$800, unless matched to the luger. The luger anywhere from $1400-$2000 or so, depending on who wants it. Wide ranges I know...
Ed