Hi there. You have a Capstain drum winch.It's more than likely a P.T.O (power take off) and looks as though it may be a Fairey make. It's very valuable and I would care for it greatly if I were you. A good capstain winch over in the UK sells for megga bucks as it's original eqip and is not made any longer. Could you post up some more pics so I can see? Does it have any letters stamped on the top of the drum?Does it still have the P.T.O attachment going from the capstain to the engine?
What can you tell us about the truck...looks very nice.
Land Rover FAQ - Repair & Maintenance - Series - Options
*****SORRY...that link if for the wrong winch!!! I will look for the capstain winch!*****