The sales catalogue code is U00134 - the colourway is Purple Heather.
In 1998 there were only 65,768 unlimiteds recorded in production.
So, pick your options:
A) It was premade early (for a 2000 release) with a duff number (not really likely IMHO)
B) It really is a T 43583 -which fits the number range but not the year. (I think it is a 'bad' 4, not 9).
C) It's a 'bad' Y also and it's really Y43583 - making it 2001 production year - which fits, as 64,933 were made that year.
D) none of the above - someone was drunk
Did you know that in the old days (pre-CG) the glassmakers used to drink copious amounts of beer all day to stop being dehydrated, in the days when water was undrinkable... ..and many got drunk and were sent home or had brawls.... If you go and visit the Red Cone in Stourbridge, you can experience the old type glass works conical building and imagine the bustle and the fierce heat.... ..see the pix, and read all about it...
back on topic....
My vote goes for (C) above.
And - I never understood this weight, and still dont. In my day, Noughts and Crosses was a game on paper with two sets of parallel tram lines, one set crossing the other at 90 degress, creating 9 boxes, into which you drew '0's or 'X's to try and beat your opponent to get 3 in a row.
I thought this was pretty universal worldwide, and anyway, I grew up in Scotland too - so what was Colin on?
-was it the beer - and if so can I have some?