The Powel Historic House Museum, in Philadelphia, has existed since 1765 (255 years). All preservation, and scholarship has concentrated on only 24 years of habitation (about 9% of the total existence of the house). It was used as a factory and horse hair warehouse for over 133 years (52% of its total life span). Starting in 1932, the structure was substantially reconstructed to depict the 1765 era. The Fisk Kimball conjectural Colonial Revival reconstruction was presented as authentic.
This projects exposes this deception by removing the conjectural building fabric and presenting it publicly as street graffiti.
The house has been used as a house museum longer than the Powel family lived there.