I have a P17 bayonet without the 2 grooves on the grips. Does any-one else also have an example without the grooved grips? Is this unusual or is it perhaps because the grips were replaced at some point? P14 and P17 bayonets always seem to have 2 grooves on the grips which is said to be to avoid confusion with the 1907 bayonet.
I will post some pictures of it on a new thread in the bayonet forum.