Here's one I've had for 14 years and just drug her out to get going. It has a B&S engine, solid front wheels and phneaumatic rears. I only wiped it down with a soapy rag then washed with water hose.
Funny how you can't seem to buy a lawn tractor under 18 horses these days but back in the day there were lot of 5-8 horse rigs and some 10-14 horse machines that could do some serious work.