Interesting photos. Might it be possible, if the chassis is without chance of being a later replacement, to further assess the missing digits under the weld by some sort of metal scanning process? As the car is so important.
There are a number of possibilities as the odd '4' could be interpreted in a number of ways. Yes, it was probably from a worker stamp error. But it could have been added later when digits were missing from the end due to chassis fracturing, to re-enable a 6 digit number.
The most important bit is the 1034XX or 1039XX (unlikely), neither of which prompt a cluster appearing with potential interesting cars on the Register.
And, sadly, this area comes into the lost B- Gaydon ledger, so the only hope comes from looking at largely UK registration dates of existing, non-racing cars - which is not going to prove satisfactory. There is too much potential lag, and it doesn't lead anywhere anyway.
What about the rear crossmember - are there any paint marks under the paint facing rearwards which could indicate chassis number stencilling on UK offside?
The gearbox I think is far too late to be original, if other likely-original cars are displaying numbers which could almost be in range with original bodies. (IS there a body number?)
The 100730 vintage racing engine could conceivably be in a recognisable AUS batch, but not with anything interesting.
The 3 bearing "angle jets" - are you suggesting they were pressurised crankcases, or just standard?
And the last supercharged racing engine - what sort of spec. and where stamped?
None of the suggest any sort of cluster with other potentially interesting engines or cars [...that have been made publicly known].
There are a number of possibilities as the odd '4' could be interpreted in a number of ways. Yes, it was probably from a worker stamp error. But it could have been added later when digits were missing from the end due to chassis fracturing, to re-enable a 6 digit number.
The most important bit is the 1034XX or 1039XX (unlikely), neither of which prompt a cluster appearing with potential interesting cars on the Register.
And, sadly, this area comes into the lost B- Gaydon ledger, so the only hope comes from looking at largely UK registration dates of existing, non-racing cars - which is not going to prove satisfactory. There is too much potential lag, and it doesn't lead anywhere anyway.
What about the rear crossmember - are there any paint marks under the paint facing rearwards which could indicate chassis number stencilling on UK offside?
The gearbox I think is far too late to be original, if other likely-original cars are displaying numbers which could almost be in range with original bodies. (IS there a body number?)
(24-12-2020, 07:53 AM)Tony Johns Wrote: I have just found this list of crankcases that I owned back in the seventies to record engine numbers of cars that were shipped new to Melbourne, Australia.
The 100730 vintage racing engine could conceivably be in a recognisable AUS batch, but not with anything interesting.
The 3 bearing "angle jets" - are you suggesting they were pressurised crankcases, or just standard?
And the last supercharged racing engine - what sort of spec. and where stamped?
None of the suggest any sort of cluster with other potentially interesting engines or cars [...that have been made publicly known].