Frederick
Frederick's historical piano collection was established in 1975 and is located in Massachusetts, United States of America. They sell vintage pianos used by famous pianists from 1790 to 1928, including artists such as Haydn, Beethoven, and others. They only sell grand pianos and have been conducting concerts since 1975, displaying their vintage pianos and performances with them. They have a series of checking before selling a vintage piano. They even have a study center for imparting the historical knowledge of piano.