Hi Mal,
I no longer have this rather sad looking mower and I don't know a great deal about early Victa models but it appears to be in the range of numbers you're looking for. My apologies if it's not what you're after.
lol

I believe I have a disassembled model 2 and model 3 rotomo also. I will check the numbers.

Cheers, Michael

[Linked Image]
[Linked Image]