Large gas tractor
Tractor pulling combine and filling truck "on the fly"
Gas tractor train
Tractor and plow.
Typical early gas tractor
Farmyard and tractor
Tractor and harrow/packer drawbar
Breaking the sod.
3060 Rumley tractor pulling six grain tanks.
Mogul tractor
IHC Big Four tractor #2
Four men in overcoats standing on a tractor
Steam-Powered Tractor #1
C.P.R. special train
Gas tractor on threshing machine