John, that is a John Deere 316 riding mower, NOT a John Deere 350 or 450 Dozer !!
Excuse me sir....I beg to differ. It is not a lowly "riding mower". It is, in fact, a John Deere 316 Garden Tractor.
They were available with a full range of attachments such as: front blade, front snow thrower, 50" 3 blade deck (all of which I have), real rototiller run off the PTO, cab for foul weather use, tow-behind power grass bagger, probably other rear attachments for the 3-point hitch. It has a 2 cyl. Onan engine and hydrostatic drive. Hardly a "riding mower"!!
The only option missing was a device to prevent idiots like me from driving it into a hole in the ground.