[VicYouel]

Andy, nice to see an example of somebody researching this forum which contains a wealth of information...... forgotton I posted my input a f ew years back.
Might make a mention of this subject in my Beaming southern notes.

Vic

[iansoady]

My 1931 Model 10 doesn't have the model number. But then who knows whether the cover started life with the bike?

[wessex_man]

I'd also have an educated guess at 1932 season as well.

[andy]

well, I have 3 bikes from 1932, the model 90, model 9 and lion, they all have the model on the brass disc, my 31 model 9 does not, non of my earlier bikes have it either so i'd guess its 32

[VicYouel]

Paul,

I have a number of covers for the Model 9/9A for the 1932/4 period..... some have the model number and capacity and others do not.... see pictures. so must have been around this period.

[phutton]

Can anyone tell me when Marstons introduced the model number onto the brass disc fixed to the timing cover?