Figured this would make a nice comparison between the three Swiss models designed on the GP11 cartridge.
The top is a 1943 manufactured walnut stock K31, all matching and with owners tag under the butt plate and a 1918 bayonet. I also have a muzzle cover for this one. Sling came with the rifle at time of purchase and is dated 1940.
The middle is a 1917 manufactured walnut stock K11, non-matching magazine with 1913 Pioneer bayonet. Sling purchased separate and is dated 1946. No owners tag with this one. It had been privatized.
The bottom is a 1918 manufactured 1911 all matching including the 1911 bayonet with owners tag under the butt plate. The sling however is not original to this type and needs replaced. Any help in locating a correct sling would be appreciated. The frog however is also dated 1918.
The first views align the rifles to show overall length along with the bayonets in place. The reverse view aligns the rear of the action to show the differences in receiver and barrel lengths along with the longer stock of the 1911.
And yes, the pioneer bayonet is a nasty in person as it looks. It is the heaviest bayonet by far that I own and the saw does work extremely well.