Rob,
I think you’re right.
I vaguely remember Benson being mentioned at the time.
There was a vast quantity of wreckage in the yard, and wondered whether they had more than one in there for processing.
The fact that it was such an old business made me wonder what else was lurking – particularly being so close to an old War time airfield.
The woods next to hanningfields held lots of half buried items and prrobably even more bucompletely buried, some were definitely wartime, some later. There was even an old Morrison Shelter. SHould have gone back with a shovel and a big van but never did