London sold, not made. Entries for Russell in PO Directories:
1856 Advert below
1865 Russell Joseph, 158 Goswell road EC
1869 Russell Joseph, 158 Goswell road EC
1882 Russell Joseph, 158 Goswell road EC
Russell labels have been found on early Lachenals.
Hi Russell - You may well be right, but I can only quote what it says stamped twice on the instrument - 'J Russell, Maker, 60 Goswell St, London'