Brand New 41 dated barrel extension

[alamar]

All:

I was at a show today and ran across a number of Luger parts. A few interesting things, although I only picked up a couple of numbered firing pin assemblies.

I did run across 2 sets f "black widow" grips. Don't know if they are original, and having trouble downloading the pics off of my camera at the moment.

I have some pics of a 41 dates barrel extension that, to me, looks brand new. However no proof marks on the right side as one would expect on an issued Luger.

Would this be safe to build on? What would be a decent price to pay for this?

Thanks in advance