Correspondence of Rack-A-Rock Co., Sherbrooke, QC, including letters written by Edward S. Winslow, who was manager of the munitions department. Most of the letters are concerned with the manufacture of shells for World War I. Also includes a humorous menu for a company dinner, and the text of an address given by Edward S. Winslow.
Letter from Edward S. Winslow to Lois S. Harrington, written from Chateau Frontenac, Quebec, while Edward was on a canoe trip up the St. Lawrence River.
Envelope postmarked 15 June 1908 with note that letter was mislaid (letter describes beginning of Edward's canoe trip from Montreal to Metis by canoe).