Lieut. Edgar, E.A., M.A. “List and Description of Old Guns and Mortars, English and Foreign, found in the Royal Military Repository at Woolwich, in the Royal Arsenal at Woolwich, and in the Tower of London. With Plate. In the Journal of the Royal Artillery, Vol. 2, 1861, p. 155-204. :
https://books.google.com/books?id=EPtBAAAAYAAJ&pg=PA155