Erfurt Magazine Mystery

[BadWolf]

New to the forum, and just picked up a super-clean 1914 Erfurt LP-08 Artillery. I'm not a "condition collector", but all the parts do happen to match, except...

I'm a bit suspicious of the magazine. As you can see in the photos, the wood mag bottom is stamped with the matching serial number, as well as the two imperial proof marks. However, the mag tube has the "D" shaped crimp near the top, which several sources indicate is characteristic of DWM magazines, not Erfurt. So what are your thoughts on what I have here?

Erfurt ran out of tubes and sourced some from DWM?

Someone damaged the feed lips and swapped out the tube with a good DWM one, but keeping the original wood bottom? (seems unlikely)

Or did some turkey actually go to the trouble of getting an old unmarked DWM mag and FAKE the serial numbers and the proof marks? (this also seems pretty unlikely but greed can be a powerful motivator).

Something I haven't thought of?

My reason for asking is not to go after the seller, as I love the pistol and the price was fair, but I would not clean and load an ORIGINAL MATCHING wood mag for actual firing, but would have no problem doing that with a repro/fake.

Your thoughts, kind experts.