These documents cover the years 1877-1883. Included are letters and agreements relating to the organization and financing of electric pen production in the United States. Also included are a letter from Edison to Western Electric agent De Lancey H. Louderback regarding royalties for telephones sold in Australia; a power of attorney authorizing agent Francis R. Welles to obtain patents in New Zealand and Australia for Edison's telephone; and items concerning Edison's sale of his Australian telephone rights to the Oriental Telephone Co., Ltd. In addition, there are letters by Western Electric official Enos M. Barton pertaining to Charles F. Brush's dynamo and arc light and to Edison's chalk-wheel telephone receiver.