of Halifax, maker of tugs for ground-handling of aircraft.
Subsidiary of Marshalls (Halifax)
At some point presumably Marshalls acquired Reliance (Trucks) of Heckmondwicke.
1976 Reliance Mercury exhibited a range of vehicles for airport use including the RM 3000 tug powered by a British Leyland engine for operation on petrol or LPG.
1987 Marshalls sold Reliance-Mercury
Sources of Information
- The Times, Sep 18, 1972
- Commercial Motor archive 
- The Times Nov. 9, 1984
- The Times, Sept. 1, 1992