1940 Chev C15, Cab 11 restoration in Holland

[jaap de wit]

thanks keith and craig for all the compliments, it is to much
I had to do one more job and that was to put the ladder on the back and done. I had to make the ladder myself so my dad stept in by giving me the iron bars of a old bed from my grand ma. these iron bars where bent on the ends already so I didn't have to do this, only to shorten them to the right length and do some welding to put everything together and it looks like a ladder so mission succes.

I have a question about the number Z 4200302 this was the number I found on the petrol tank, but the secont 0 was not clear to be sure it is a 0.
can anybody tell me what it can be, if it was a 0 or a 6 or .... (the picture of the tank are on this forum to see the original number.)
hope someone can shine a light on this.
cheers for now
jaap