according to Burl - Great Stone Circles (got it last week for £10)
who's wittering on about stones not being there in the prints....
"a derivative watercolour By William Smith as well as an engraving dated 1575 by R.F. (and an incompetent RE-ENGRAVING for the 1600 edition of Camden's Britannia). ... There are obvious absurdities in the Camden........ a walled castle in a mountainous background, presumably a misunderstanding of the Latin 'castrum'; trilithions linked together like a medieval mass gallows and with stones missing or misplaced"..
