Others may see something I don't see, but I think that is a 1966-69 Bolens 850 (model 191-01 or 191-02) tractor. ....The other possibility is a 1966-69 Bolens 1050 (model 192-01 or 192-02).
The front tires were typical of the 1050, but the transaxle appears to be a 3-speed, while the 1050 had a "six -speed". ....More pics showing more details would help with identification. ....If the numbers are still on the front of the Wisconsin, that will help id.
However, over the years, many components may have been interchanged on these models, so that may be a hybrid.
The numbers on the hydraulic pump are the numbers for the hydraulic lift kit, which was sold as an accessory. ...It did not come from the factory already installed.
Edited by Bruce Dorsi, August 10, 2017 - 09:42 PM.