Windmill Hill, nr Avebury, Wiltshire.
Reported 25th July 2012

A shaft with ripple edges attached to two ringed circles containing circles of decreasing size, the largest being off centre.

A shaft with ripple edges attached to two ringed circles containing circles of decreasing size, the largest being off centre.

A shaft with ripple edges attached to two ringed circles containing circles of decreasing size, the largest being off centre.