Army engineer who designed and built the ironclad warship Monitor for the American navy. Lot of two items: ALS on a lined 5 x 7.75 sheet, November 14, 1859, regarding an unspecified legal or financial matter; and an ALS on a lined 5 x 7.75 sheet, February 3, 1860, regarding a Canadian patent for a caloric engine. Accompanied by typescripts of each letter. In fine condition, with usual mailing folds, slightly irregular edges, and a small crayon mark to each. R&R COA.
