1871 ALS from J.A. Harriman of Michagan to his sister, describing his invention for cutting matches, and his business doing so

Grand Rapids , 1871 . Letter. Very good. 4p. (3p of Mr. Harriman, 1p. from Mrs. Harriman writing in 'space he has left her') with mailing envelope. He describes the logistics of starting business, borrowing of money, inability to repay recipient until match business takes off, four female employees and need to hire dozen more, etc.