![](https://www.horniman.ac.uk/media-collection/150/478/WI_M126a_1996.jpg)
Anglo-German system. Serial number 865. Oval paper label: 'Louis Lachenal Patent Concertina Manufacturer, London.' 6 1/4" diameter flat mahogany ends, very simple frets, white leather backing. 21 keys: 10 each side, with air release on left-hand. Flat bone buttons. Stamped 1-10 each side. Left-hand strap, right-hand strap later, with one brass screw. Five-fold green leather bellows with gold star papers. Round-end brass reeds.