Nice 129. You will like it. 12 hp, hydrostatic drive, looks like it came with a 3 point lift. Almost looks like it had a spring assist but don't see the adjustment bolt head sticking out. Looks like it came with a 48 inch deck instead of a 42. Give it a tune up: carb rebuild, points, condenser, and fresh Hydro fluid and filter. If the Hydro seems to be a bit jerky you may have to do the trunion repair, not hard to do.
... Enjoy your new addition.