Thanks for the clue, Will, but the info about Finnish license numbers not starting with 0 is a matter of public record that I googled yesterday!! So that "clue" doesn't make it any easier for ME!Thanks everybody.
No winner yet, but here's a clue. The first of the numbers is NOT zero, so no 0 at the start
That make it easier?
315, I only keep guessing because I don't like leaving things unsolved
The No.s have no connexion with Finland - as far as I can tell so not 612 or 126 or 7...
The No. 1 DOES NOT feature in this, rule it out..... I did not choose this number plate, it came with the car so no personal connexion either.