10-09-2021, 01:34 PM
1A numbers were starting to be phased in during late 1926, there are a few 1A parts on my Top Hat project although most are still XL and this has a production date of mid December '26. The change was very slow, by the time my Chummy was produced in October '27, the opposite is true, i.e. most parts are 1A and a few are XL.
It's possible that numbers of individual parts (e.g. front axle, cylinder block etc.) were issued sequentially from a major change, so yours might be the 23xxxth axle of the type with shock absorber mountings for example.
I'm working on a theory for 3 speed gearbox numbers, I think they can be dated pretty accurately.
It's possible that numbers of individual parts (e.g. front axle, cylinder block etc.) were issued sequentially from a major change, so yours might be the 23xxxth axle of the type with shock absorber mountings for example.
I'm working on a theory for 3 speed gearbox numbers, I think they can be dated pretty accurately.