G'day Don,
A couple of bits of info that may be helpful here.

1. Ignition key - these mowers used a switch that just has a 'universal key'. If you can find a maker's name or part number on the switch, that would help a lot. 'Indak' was a common switch brand in the 1980's when the Anniversary series were made, and those keys are easy to find.

2. Drive clutch shaft - the Anniversary 12-30 and 12-32 models also used the same shaft, P/No GT7016.
Edit: A secondhand shaft is your best bet; good luck with finding one!
These 'long' version clutch shafts were rather fracture-prone; I seem to recall that GA Spares even offered an aftermarket version, back in the day.

Last edited by Gadge; 04/11/17 08:48 PM. Reason: Add info

Cheers,
Gadge

"ODK Mods can explain it to you, but they can't understand it for you..."

"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."