PETRI, Egon, letters, autographs, documents, manuscripts Home | Archive | Facsimiles | Forgeries | Back PETRI, Egon (1881-1962). Pianist. Signature on a Wigmore Hall programm for a recital held on Friday 27 November . Together with the counterfoil of a ticket for the performance. [No: 6501] This is the archived description of an item that has already been sold. Please contact me if you would like any further intormation.