Early British trackways : moats, mounds, camps, and sites

Watkins, Alfred, 1855-1935 · 1922 · Hereford : The Watkins Meter Co. ; London : Simpkin, Marshall, Hamilton, Kent & Co. · 27 pictures

Mounds · Leys · Megalithic monuments

Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0 · More from this library