Bonsall, Marsh and Guy
1821 Mention of Bonsall, Marsh and Guy of Marylebone Street.[1]
1821 Partnership dissolved. '...the Partnership lately subsisting between us the undersigned, Thomas Bonsall, William Marsh, and Peter Guy, of Marylebone-Street, Piccadilly, in the Parish of Saint James, Westminster, and of Berner's-Mews, Newman-Street, Oxford-Street, both in the County of Middlesex, Engine-Lathe and Tool-Manufacturers, was dissolved on the 12th day of this instant month of March by mutual consent; and that the said business will in future be carried on by the said Thomas Bonsall and William Marsh...'[2]
Notes
Sold on ebay in 2013: 'A Goniostat is used to hone ornamental lathe cutters. It is a rare and hard to find device. The cutter is clamped into place and the goniostat can achieve any compound angle. The two steel rods on the bottom of the piece would be inserted into a holder. The marking, clearly legible, reads "Bonsall Marsh & Guy No 8 Marplebone S. Piccadilly" In another spot, marked LONDON.'