unknown butterfly

unknown butterfly

Observation - unknown butterfly. Description: The colour is greyish brown with one dark spot on each fore wing and two on each rear wing. It has a white fringe around the edges of the wings. About 50mm wingspan. Seen among thistles. Any ideas?

The colour is greyish brown with one dark spot on each fore wing and two on each rear wing. It has a white fringe around the edges of the wings. About 50mm wingspan. Seen among thistles.
Any ideas?