I took a walk along the cliffs from Saltburn to Staithes yesterday. I came across this stone on the top of one of the walls. I’m kind of in two minds about whether the cups are genuine or solution cups.
One thing that does sway me towards them being carved is that the wall in question is the boundary of the field that contained the Street House Neolithic Cairn. The excavation of the cairn and overlaying Bronze Age mound yeilded a number of cup marked stones. I had had a look at the drawings of the cups in the excavation report and they seem to display the same coarse/irregular nature as these cups.