Mosquito rams have steel bodies, made by Lockheed hydraulics (AIR). Steel pipe body with aluminium end pieces is not super uncommon, cheap and cheerful to make in wartime. The eye fitting at the end of the shiny and the small anchoring hole are making me think aircraft, looks like a bomb door jack, two way ram with long tongues on anchor piece allowing articulation. Miles Master and Oxford had Lockheed hydraulics. An AIR part number will confirm this. I would punt it is ‘aircraft with bomb doors’ adapted for agricultural use.