40.133149, -75.214675 (estimated coordinates where marker may have been located)
Ambler - 1
Named For Encampment Of Washington's Army Oct. - Dec. 1777
This date was apparently not on the marker
Unknown. Believed to be long gone. Known only from Clair Clawser book.
No photo of this marker is known to exist.
Bethlehem Pike Near Fort Washington State Park