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