"unissued" NO.1 Mk3

[newcastle]

OK so i checked and I must have been on crack or something - serial number is 6 including the letter, but the letter is a 'C' - C910XX
. how does that relate to a 1942 rifle. Nosecap has hgad a number ground off. However no sign of JJco NY anywhere on the rifle that I can see without stripping it down. there is a 'B141' stamp on the rear of the reciever behind where the bolt sits that i haven't seen before