![](https://www.horniman.ac.uk/media-collection/150/546/WI_M339a_1996.jpg)
Anglo-German system. Serial number 90150. Oval paper label: 'Lachenal & Co. Patent Concertina Manufacturer, London.' 6.25" diameter flat, simple mahogany ends, red leather cloth backing. 31 keys: 15 each side + 1 air. Flat bone. Later leather straps, stamped 'Steel Reeds' and 'English Make Trade Mark' on hand bar. Five-fold black leather bellows, with gold star papers. Round-end steel reeds.