I had one in my hands today that sounds very similar. It had some wording on the barrels that I will try to get a pic of. Krupp tubes with P and X inspector marks which looks like it dates it to late 50's to early 60's.

It also had a mark I do not see listed anywhere, it is an "R" with a backwards "R" merged with it on the left side..back-to-back if you will, anyone seen this?

Best,
Mark



Ms. Raven