- TORQUE AMPLIFIER - PTO - BELT PULLEY  - AS NEW BFG 16.9X30 REARS - SERIAL #10350 - THIS TRACTOR WAS LAST RUNNING IN 2017 WHEN PARKED IN THE BARN - NOT CURRENTLY RUNNING - FROM THE ROGER HADFIELD ESTATE - FATHER OF CHRIS HADFIELD (RETIRED ASTRONAUT, RCAF PILOT & EN