Thanks Bushy and pre

I have downloaded the engine manuals from Briggs and Stratton.

Unable to upload pictures at the moment. I took photos of anything that looked like it could ID the mower.

Engine Briggs and Stratton
Model Type
252707 0658-01

Found the 4 digit code stamped on the front
2170

On one of the large drive pulleys
GT401 A

A label on the side panel was very faded and most had peeled off.

Part numbers are
Drive belt GT371
Cutter belt GT37?
2? ' Blades ?
?" Blades ?

Hope this helps.