Model 1957 Pattern Bayonet
Like the issue knife , the contract was split between Victorinox and wenger , I have a wenger , marked with a kind of W.
These were used thru the 60's up until the 80's.
They have 2 usable edges but unsharpened , they have a nice tip. feels comfy in the hand . very stabby.
I recall that these were the first stainless bayonet blades
Thats what I recall from some internet research a while back.
I havent sharpened mine yet , but have been told they sharpen up well.