Looks like a 770 ind. Does it have two pedals side by side, one for forward, one for reverse? Most 770 ind's did. they controlled the direction of travel and the throttle (engine speed). Torque converter and reversing transmission with it's own oil (auto-matic tranny oil) is under the fuel tank. You need to get an operators manual and read it before you run it. Gear tranny uses 90 weight gear lube. Tractor S/N and spec #'s should be on a plate below the dash and above the floor board on th LH side.  
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 Contact them for manuals for 770 Ind
with Reverse-o-torque, Should get you in the right ball park.[