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Pete Ebbink · 01-10-2007, 02:09 PM

Hi Ernie,

The term is "Berner Probe".

Here is what is looks like on one of my Swiss M1929 Lugers :

Here is a chart from the Bobba book on Swiss lugers showing all the Swiss proofs :

Crown/U is probably one of the "BUG" proofs on commercial lugers.

Crown/Crown/U was a late Mauser proof in the WWII era.

You will see only "BU" on the left side of a receiver and "BUG" on the barrel (usually with "halos") :

01-10-2007, 02:09 PM	#2
Pete Ebbink User Join Date: Jun 2002 Location: The USA Posts: 5,919 Thanks: 0 Thanked 7 Times in 5 Posts	Hi Ernie, The term is "Berner Probe". Here is what is looks like on one of my Swiss M1929 Lugers : Here is a chart from the Bobba book on Swiss lugers showing all the Swiss proofs : Crown/U is probably one of the "BUG" proofs on commercial lugers. Crown/Crown/U was a late Mauser proof in the WWII era. You will see only "BU" on the left side of a receiver and "BUG" on the barrel (usually with "halos") :