I saw this on my way to London, on the A1. It looked as if a 'landing' had been made on the earthworks which were to become the north bound lane of the new A1 dual carriageway. If the photograph shows it in field then it had slid from the 'road' into the edge of the field. I remember it being further south than Middleton St George.
How about posting the photograph?
Just found this - with position.
ASN Aircraft accident Vickers Valetta T.4 WJ467 Leeming