Plate XX, figure IX, in ‘Antiquities, Historical and Monumental, of the County of Cornwall’ (1769).
books.google.co.uk/books?id=R2dTAAAAcAAJ
Image credit: William Borlase
Plate XX, figure IX, in ‘Antiquities, Historical and Monumental, of the County of Cornwall’ (1769).
books.google.co.uk/books?id=R2dTAAAAcAAJ