Is this a rare Swiss Luger?

[Vlim]

It doesn't help that the Belgians invented the French Fries either

I am skeptical about claims that Swiss Lugers cannot be made to work with 9mm barrels.

Michael, and rightly so. Documented evidence show that the alterations made to the opening curve of the 06/29 design hindered the development of a reliable Mauser Parabellum in 4" 9mm and in 6" 9mm and in 4" .30 luger. Since the action of a Parabellum is a physics balancing act, you can imagine the frustration of the German engineers in the late sixties.

Documented evidence also shows that the guys at Bern had problems coming up with an accurate 9mm version of the 06/29, which was finally solved by using a completely stress free gun barrel steel. Which in turn created a functional Swiss 06/29 in 9mm...

I would really like to know why the Swiss decided to change that opening curve of the 06/29. They must have had a compelling reason to do so, judging from surviving test guns where the opening curve hat been altered.

With so many possible combinations of springs, spring tensions, steel types, steel hardness variations, powder types, loads, bullet types, rifling patterns finding a working combination was a matter of trial and error. This may explain how several different makers reached different conclusions and created different solutions.

It's about time to ransack the Swiss archives once again