Abstract

The American Gem Mining Syndicate was a Philipsburg, Montana, sapphire mining company. Records include interoffice correspondence (1903-1935), general correspondence (1902-1929), court papers (1906-1915), employment records (1912-1930), financial records (1904-1930), legal documents (1903-1907), organizational records (1901), and production records (1911-1914). [Maps were transferred to Library Map Catalog].

Abstract The New Mine Sapphire Syndicate was a British-owned company which operated the Yogo sapphire mines in Judith Basin County, Montana. Records consist of incoming (1914-1934) and outgoing (1904-1931) correspondence between mine manager Charles T. Gadsden and syndicate offices in London; directors' minutes (1914-1930); stockholders reports (1915-1933); financial records; organizational materials; and miscellany. Also included are two letterpress books of outgoing correspondence (1924-1931)...