Only the post remains. The marker is believed to be in the possession of the Newtown Square Historical Society. It is doubtful that the Dept. of Highways created/installed markers like this. It is not a keystone.
March 2021 photo by Newtown Square Historical Society
Valley Forge Road near Church Road, Wayne PA
This was a “variant” marker, rather than a “Keystone”, used as a traffic sign to warn of a DANGER.
Geocode by C. Busch, June 2011.