Hello Utility

The 'red' utilities appeared in about 1972.
The '72' numbers in the c/case number indicate that, too.

This is a 125cc with G3 carby.
It appears to be mostly original ...

I good start would be the Victa brochures:-
https://www.outdoorking-forum.com.au/forum/ubbthreads.php/forums/152/1/VICTA_Models.html

Specifically the 1972 Range:
https://www.outdoorking-forum.com.au/forum/u...ALOGUE_-_Victa_1972_Range.html#Post61969

Hope this helps.
----------------------
Jack

p.s. I can't help with the colours.
Maybe a member can chip in on that.