>Any way of posting up an original Stukeley illustration of Silbury so it can be compared with the printed version?

The woodcuts and engravings are out of copyright but the original drawings in the Bodlean are copyrighted and they charge £47 per image for one time publication per year.
Some have notes at the bottom to the engraver to make them longer or shorter, some of his prospects of Avebury are bunched up at the sides with hugely exagerrated banks whch he told the engraver to stretch.
Plate 44 has of Avebury Revisited shows one example.