My best guess is a early 60's model 30 series tractor. I can't say if it's a 430, 530, 630. But 430 and 530 were more common. It does have the original Eagle Hitch, great for collectors but a pain for everyday use. I don't think it's a hundred series. The 400 would have different sheet metal on the front, the 500 would be diesel, and it doesn't look large enough for a 600. I believe the tall lever on the left of the dash is for live power, no hydraulic remotes that I can tell.