Panagiotis Poulopoulos and Julin Lee, ‘A Synergy of Form, Function and Fashion in the Manufacture of the Erard Harp’ in Marco A. Pérez and Emanuele Marconi (eds.), Wooden Musical Instruments: Different Forms of Knowledge (Paris: Cité de la Musique - Philharmonie de Paris, 2018), pp. 367-398.
The article provides a summary of the development of the Erard harp from c.1790 to 1840, with some new details concerning the serial numbers and manufacturing marks on Erard harps. The focus is on the London branch of the Erard firm, with brief references also to the Paris branch.
The article is included in the final publication of the WoodMusICK initiative, for more details see here: http://woodmusick.org/