This one was part of a wall I was repairing at Howdale and forms the boundary of the farmed land and the moors. It is also the boundary of the Strickland Estate & Fylingdales parish boundary - an ancient boundary dating back at least 500 years. I replaced the stones around this sheep creep in their previous positions where possible. This was in 2010. Early in spring this 2016 or 2017 year I was leading a wildlife walk and for the 1st time noticed the circular' cup and ring' marks on the right end of the lintel. These marks occur in many places in the UK, and can be found in substantial numbers on the nearby moorland. I obviously never noticed when I was rebuilding this wall.
This is not the only archaeology find in this wall. I also discovered a cope stone with several 'cup' marks on one side. But that I noticed and emailed the national park at the time of finding it.