09-12-2021, 11:52 PM
More likely an inspector's stamp I think. I've just checked three gearboxes I can get at easily, a coupled one (1932) has "( )", an uncoupled one (1929) has "O" and the Top Hat (1926) has nothing.
Regarding the numbering on gearboxes, I think that the letter is the first digit, where A=1, B=2, C=3 and so on. The rest of the number is numeric. So the 1926 Top Hat has an original gearbox 8363B, which translates to 28363, which ties in well with chassis 27983, engine number 27998.
My RK saloon has gearbox number 8473I, which becomes 98473, which goes well with chassis 97927, engine 97788.
I have a 1932 RN saloon gearbox in the garage at the moment, it carries 4202O, which translates to 154202, which would make it one of the last three speed boxes.
I'll go and put my anorak back on......
Regarding the numbering on gearboxes, I think that the letter is the first digit, where A=1, B=2, C=3 and so on. The rest of the number is numeric. So the 1926 Top Hat has an original gearbox 8363B, which translates to 28363, which ties in well with chassis 27983, engine number 27998.
My RK saloon has gearbox number 8473I, which becomes 98473, which goes well with chassis 97927, engine 97788.
I have a 1932 RN saloon gearbox in the garage at the moment, it carries 4202O, which translates to 154202, which would make it one of the last three speed boxes.
I'll go and put my anorak back on......