Interesting British Head-Stamps .333 Jeffery


I recently bought a few older .333 Jeffery and found they had two interesting head-stamps , I checked my books and found one as unknown.
I believe, but I am not 100% sure that;
the “KN” stands for Kynoch and possible Nitro ???
the H and C possible H = Holland & Holland and the C = Cordite ???
Maybe someone in the USA or our European and British Collectors have an idea, or anyone ?

Thank you
David Call
A Call to Arms, LLC or


Hi Dave,

KN = King’s Norton Metal Co., Ltd.
KC = Kynoch Ltd. – Cordite




Thank you very Much !!! So what looks like a H is a K ? It does seem to have a longer bottom leg headed to the right :-)