Manufacturer:
Oliver
My Oliver 1550 which I used for several years as my driveway and pto generator tractor.
Traded in when I got my Branson 8050 in 2015.
She was a good tractor, took a bit of repairs over the years.
Broke a shift rail one winter, pulled the top cover off and welded the rail while still in the tranny.
Had to refresh the engine after a few years of a steep driveway, increased the oil pan sump depth and redid the head and rings, bearings, and seals and new clutch. And of course brake work.