Williams & Norgate

http://id.loc.gov/authorities/names/nr2003021838

found: Brown, P.A.H. London publishers and printers, c. 1800-1870, 1982: p. 225 (Williams & Norgate; 14 Henrietta Street, Covent Garden, 1844-ca. 1900; 2 Queen's Head Passage 1860-1864; 30 Maiden Lane 1876-1882)