Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,403 pages of information and 211,619 images on early companies, their products and the people who designed and built them.
of 63 Newman Street, London, W1. 17 and 18 Rathbone Place, Oxford Street, London, W1. Telephone: Museum 1081. Cables: "Goniometer, London"
Arthur Newman was an important camera/lens/shutter/cine designer in the UK from about 1880 into the 1920's. He designed the first leaf shutter.
1891 Arthur Newman with Julio Guardia, a naturalised Spaniard and keen photographer, formed the partnership of Newman and Guardia; Newman was the designer.
1897 launched the N and G Kinematograph camera, one of which was sold immediately to Sir George Newnes’s Antarctic expedition.
1906 Guardia died.
1908 Newman designed the Newman and Guardia Sybil camera series. The Sybil range commenced in 1908, with the Special Sybil appearing in 1909.
1909 Arthur Newman set up a partnership with James Sinclair called Newman and Sinclair, and opened a workshop to manufacture film equipment to be retailed by James A. Sinclair, the best known being Newman and Sinclair's Una.
1910 Newman left the company.
Newman and Sinclair went on to design and sell many items including the Una and N and S Reflex cameras.
1929 British Industries Fair Advert for various cameras. Manufacturers of Folding Reflex Cameras; "Sibyl" Cameras for Plates and Film Packs; "Sybil" Cameras for Roll Film; N. and G. "Trellis" Camera; Enlargers; Photographic Accessories. (Photographic Section - Stand No. O.21) 
The firm, Newman and Sinclair continued on well into the 1950's, mainly focusing on Cine equipment.