need 1300 owners help PLEASE

if any and as many as possible that can take a look at your 1300 final drive mounted on you bike....... would you mind telling me the 3 letters that are stamped/raised on the inside of where the final drive and drive shaft bolts together with the 4 bolts? you would be looking at it through your rim from the disc brake side, you should be able to see these letters on flat inside of the FD housing, its start with the letter 'M'

PLEASE? and thanks in advance

Emilio