BSA No.4 T magazine

[jonh172]

M6 is the wartime code for Aluminium Bronze Co Ltd of Walsall
M56 is the wartime code for Cheney & Son Ltd of Willenham

The M series of codes were issued to Manuafacturers in the Midlands
BSA Shirley was in the midlands so either of those would be appropriate

I had an all original BSA '44 No4(T) that carried an M56 coded magazine if that helps?

This is excellent!
Exactly what I was looking for thank you!