Bonsall, Marsh and Brown
1821 December. Advertisement for an apprentice. Bonsall, Marsh and Brown's engine, lathe and tool manufactory, 8 Marylebone street, Piccadilly.[1]
1822 Advertisement. Selling a second-hand lathe. Bonsall, Marsh and Brown's engine, lathe and tool manufactory, 8 Marylebone street, Piccadilly.[2]
1823 Sale of the Stock and Working Tools of Bonsall, Marsh and Brown, late of Marylebone Street, engine, lathe and Gentlemen's tool manufacturers, for the benefit of creditors. (Lists items).[3]