we bought our house in France with two fields attached – about seven acres in total. The first time we saw them, this piece of agricultural ‘kit’ was parked up just inside the gate.
I believe it’s a mobile feed dispenser for sheep (our neighbour, who had a flock of sheep at the time, used the fields for grazing). Sadly, it was gone by the time we completed the purchase.
Perhaps it went to a museum although, given the notable dearth of sentimentality among those who actually have to live off the land, it could just as easily have been converted to firewood.