Centre Sébastien Erard

Erard: Ledger 1819-1822 (n° d'inv. D.2009.1.76) - Some pianos and harps whose numbers are included in the previous ledger are mentioned in the beginning of this volume. These are especially indications about when the pianos left the workshops. Pianos n°10581 to 10662 (December 1819 until 1820). The numbers 10663 to 11109 do not exist: the gap of 447 numbers is reserved for 447 pianos "forme clavecin" old and new; Pianos n°11110 to 12038 (1820 to 1822); Single-action harps n° 661 to 669 (1820); New double-action harps, n° 42 à 51 (1820); Single-action harps n° 670 à 690. The numbers 691 to 741 do not exist: the gap of 51 numbers is used for the new double-action harps n° 1 to 51; Single-action harps n° 742 to 839 (1820 to 1822).