This organization has contributed to the following objects in the Encyclopedia.Detail of a square piano made by Charles Albrecht, Philadelphia, ca. 1790Detail of a square piano made by Charles Albrecht, Philadelphia, ca. 1790.Square piano made by Charles Albrecht, Philadelphia, ca. 1790Square piano made by Charles Albrecht, Philadelphia, ca. 1790.
Detail of a square piano made by Charles Albrecht, Philadelphia, ca. 1790Detail of a square piano made by Charles Albrecht, Philadelphia, ca. 1790.
Square piano made by Charles Albrecht, Philadelphia, ca. 1790Square piano made by Charles Albrecht, Philadelphia, ca. 1790.