This organization has contributed to the following objects in the Encyclopedia.Detail of a square piano made by Charles Albrecht, Philadelphia, 1789Detail of a square piano made by Charles Albrecht, Philadelphia, 1789.Square piano made by Charles Albrecht, Philadelphia, 1789Square piano made by Charles Albrecht, Philadelphia, 1789.
Detail of a square piano made by Charles Albrecht, Philadelphia, 1789Detail of a square piano made by Charles Albrecht, Philadelphia, 1789.
Square piano made by Charles Albrecht, Philadelphia, 1789Square piano made by Charles Albrecht, Philadelphia, 1789.