1889 [Supplied year] Andrews, W H [supplied or conjectured] to Edison, Thomas Alva [supplied or conjectured]
(Tiffany & Co; Kunz, George Frederick) Metals and minerals
[D8970]  Document File Series -- 1889: (D-89-70) West Orange Laboratory -- Suppliers
[D8970ACN; TAEM 128:485]
Courtesy of Thomas Edison National Historical Park.