Letter, 16 January 1885
Letter from Charles A. Brinley to B.J. Harrington, written from Philadelphia.
Typewritten letter from L. Geo English & Co. to B.J. Harrington, written from Philadelphia, offering molybdenite for sale.
Letter from A.R.C. Selwyn to B.J. Harrington.
Letter, 10 April 1883
Letter from George F. Barker, written from Philadelphia.
Letter from A.R.C. Selwyn to B.J. Harrington.
Letter from Edgar F. Smith to B.J. Harrington, written from Philadelphia.
Letter, 20 December 1885
Letter from Persifor Frazer to B.J. Harrington, written from Philadelphia.