Concertina made by Lachenal & Co.

Lachenal & Co. was a London firm producing concertinas from approximately 1850–1936.The founder Louis Lachenal was a Swiss emigrant who arrived in 1839, and by 1844 was working in support of the famous Wheatstone concertina firm before founding a supporting contract firm and by 1858, an independent firm. There is s thriving second-hand market in old concertinas.