Burman CP gearbox mainshaft Part No

[g80csp11]

Can anyone tell me if the mainshaft part number 10-C-15 is the same as 10-C-15M MA
Obviously a different number , I dont know what the difference is
My bike is 1946 , so original part number listed was from 1941 to 1948

I looking for a new one , or remanufactured one if they exist ( not same as Ariel)

[Samuel]

Try calling Les on 020 7228 1714 at Russell Motors. They have some CP gearbox parts

[g80csp11]

Les is reluctant to let his sample go , unfortunately despite asking so many time and is not making many parts now days