Surviving pianos

Cristofori’s surviving pianos

One is at the Metropolitan Museum of Art in New York City, and was made in  (1720 ) . It the oldest Cristoforse's surviving piano.                                                                       

The second one is at the Museo Strumenti Musically in Rome , it was invented in  (1722).

The third one in Musikinstrumen-Meseum of Leipzig University, Germany (made in 1726).