+1 to Mowerfreak on this one.
Most probably a 1971-3 VictaCode V100 model, as they used the long reach N-21 spark plug. The next V145 Ute model used a UJ-12 plug.

Last edited by Gadge; 11/05/17 09:59 PM. Reason: clarify model info

Cheers,
Gadge

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