[CHÂTEAU DE LA MUETTE] Manufacture ÉRARD. 4 headed documents, 1864-1887. L.S. by A. Blondel, March 24, 1864, claiming from Marquis Ponzoni the payment of 810 fr. for the repair of his piano. Receipt for the rental of a piano, 9 August 1886. Invoice for a grand piano, 23 May 1905, to Hamelle musical editions. Invoice paid, May 6, 1887, for the sale of an upright piano to Joseph Calvet Rogniat (former deputy), sent by sea to Constantinople. Attached: Érard PIANOS - Two rare lacquered metal publicity boxes, one containing phonograph needles. 3.3 x 4.6 cm (Rust stains) - Calibre for stringed instruments in metal. Engraved "Érard -1891". In its case. L : 9 cm