[TR] build date of TR3A

[John Macartney]

I've been reading the few recent posts about vehicle dating and the queries 
arising from why a car was built in 1743 and not shipped until 1805.

There's a very good reason for why and how this happened, although it 
essentially boils down to 'paperwork.' - the timing of its creation, arrival 
and processing. I'd be happy to outline the whys and wherefores (if anyone 
is interested?) but the subject is potentially a little dusty and fusty. 
Also it will require fairly judicious chopping up into bits to send to the 
list if I am to avoid creating a too large post - which will certainly be 
the case with one hit.

Jonmac