Siegmund Hildesheimer (1832–1896) founded his eponymous company (S. Hildesheimer & Co.) in Manchester, England, at 62 Dantzic Street and, later, 63 Miller Street. By 1876, the firm had a branch in London at 15 Silk Street. About the same time Siegmund's brother, Albert Hildesheimer (Aron Elieser) (1843–1924), founded a greeting card company in London nearby at 8 Chapel Road.The two firms were joined by 1887 and by 1902 had many postcards in production. The London business later moved to 96 Clerkenwell Road. Hildesheimer and Co. postcards primarily employed a chromo-lithography printing process, and the printing was often done in France and Germany or at local English printing houses.
References
Anthony Byatt, Picture Postcards and their Publishers (Malvern: Golden Age Postcard Books, 1978), 130–32.