Israel Sigmund Greenberg (c.1845-1926) was born in Russia, of Jewish parentage. He was the son of Menachem Mendel Greenberg and Bunne Dominitz. Israel Sigmund became a jeweller at Birmingham. In 1870, he was naturalized. By 1881, his address was Frederick Street, Birmingham. In 1884, he registered a silver mark in London. By 1886 he was trading at Bennett’s Hill; then in 1889 he was based at Vyse Street. He advertised as I. S. Greenberg & Co, jewellers, silversmiths, watch and clock manufact....