Getting closer. Making the white part of the wheels pearly white again required plenty of elbow grease with steel wool and gumption bathroom cleaner. Even bleach didn't shift the years of ingrained dirt stains in the plastic.
Engine is a bit clapped out but the one that came with the mower and I don't plan on doing any lawns with it. I washed the gunk off and polished the aluminium rust off the heat shield for the exhaust.
Now just a matter of letting it dry overnight and reattaching the carb.
Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!