Well new to me at least... I love these things, I have two now.

This one is an '86 Snapper Rear Engine Rider w/ 12hp briggs. I have another that is late 60's early 70's with original 8hp motor that I'm going to restore while using this one.

I've only got 2/3 acre, but its still takes about 3 hours to completely push mow and line trim. These little bastards are about the best mowers you can buy for basic flat lawn mowing.