Where/What is This?

This is the Ironmaster's Mansion at Sarah Furnace located at the corner of Dunnings Highway and Quarry Road at the Old Sproul intersection. It was built for Dr. Peter Shoenberger, a local iron master. The mansion had 21 rooms with imported black marble fireplaces throughout. The mansion was left to Shoenberger's grandchildren with the provision that the room at the "head of the stairs on the right hand side ascending" should always be reserved for his wife Sarah (Krug) Shoenberger, for as long as she lived.