I have pictures from 1949 where my father and his cousin were digging our farm pond and the cousin (a contractor) was working with a drag line on a tracked shovel and a TD-24. Pop was trying to move dirt with a blade on a WC Allis Chalmers tractor. I think that's about the time he decided that even a tiny dozer like the OC-3 was far superior to a tractor for serious earthmoving and stone removal. I can remember things to do with tractors as far back as 3 years old and I always remember the OC-3 being around. So pop had to have purchased the thing between 1950 and 1953. We had 50 acres of land on the Black River flood plain and we would store around 5-7,000 bales of hay in the barn on the flats because we couldn't store it at home. About janurary when we had used up all of our straw for bedding, we would load up the OC-3 (and later the OC-4) and plow snow out of the road down to the barn to load up the flat hay, take it home and run it through and old Blizzard ensilage cutter for bedding. From the highway to the barn was about a mile and some years we'd be plowing 4-5 ft. deep hard packed snow but that little OC-3 always did the job.Had a chance to pick up an OC-3 at an acution this fall, but it went for more than I wanted to pay for it. It was worth what it went for, but I elected to save my money and put it in the OC-4. Our OC-4 has the manual angle blade and the hydraulic leveler on the right side. Pop never did much work in the woods, but once I get the dozer back it will see some use building some new suger-bush roads and possibly some skidding where I can't manuver with the 1955. Since the dozer has been down for ten years or so, most of my field roads need repair and replacement of several sleuce pipes, too.