"Joseph Lang married the daughter of James Purdey, and by 1853 had moved to 22 Cockspur St. However, in 1895 James Lang, the son of Joseph Lang, had become Lang & Hussey Ltd., Mr. H J Hussey having been the 'late assistant manager' of Holland & Holland Ltd. In addition to moving to new premises the name of the firm was to be changed to Lang & Hussey Ltd and the combined firms were to be under the personal supervision of Mr H J Hussey."
Quite a history for quite a gun!!!