Polish PmK and kbk AK bayonet
Here you can see Polish bayonet made for PmK rifle. PmK name was used till 1960′ when it was changed in kbk AK. So technically the first bayonet on the photo under this text is PmK bayonet (it was made in 1958, the second one (made in 1970) is kbk AK bayonet.
Years of production stamped on bayonets.
Different serial numbers (one was removed overstamping with X letter).
Łucznik Arms Factory logo.