from ‘the Harwell News’ number 143 April 2007
‘...we come to the few stones lying about in Harwell, such as the Bargain Stone, and my ignorance regarding their origin. They are all about 60cm thick, and are all at or near Middle Farm barn, (the barn on Grove Road) apart from a smaller one by Church Farm. If these stones are Sarsens it would seem likely they were brought here from the Downs by man. Did the people who built the barrow bring them? I have not heard any facts or even theories relating to their origin.‘
text by Martin Ricketts.