Note 4 — II.
Reading edition
"The Copper Works of the Messrs. Revere are referred to by various writers as of Boston; Bishop saying that 'in 1802 the only manufactory of sheet copper in the country was that of the Messrs. Revere at Boston.' The facts are that while this firm made Boston the headquarters of its business the manufactory was at Canton where soon after the war $25,000 had been invested in a plant."—The Memorial History of Boston, vol. iv, page 81.