Click photo for much larger version
This photo is from Hawley’s Fifth report of his diggings in 1923, published Jan 1925 in the Antiquaries Journal Vol V No 1. Not only does it seem to show the eastern ditch in the road, but also a dark mark where the shallow anomaly near the heel stone was found. There is also a hint of peri-glacial stripes near the east ditch leading up to the heel stone ditch, the nearer stripes may be track marks. I wonder if there are other photos from the same era.