Roman London - the London wall
These pages are based on a "Royal Commission On Historical Monuments 1834" - actually it is 1928; which is in the public domain.
(44) Upper Thames Street (D). Under Cannon Street Station a wall 200 feet long
was discovered in 1868. It may have formed part of the city-wall, but the
position and direction are not definitely recorded [see Inventory, p. 113].