- Department of the Navy. First Naval District. Portsmouth Navy Yard. Industrial Department. ca. 1915-9/1947
- National Archives at Boston
This letter from L. S. Adams of the Portsmouth Naval Shipyard responds to M. Sugi's request in the "Letter from M. Sugi of the Imperial Japanese Navy to the Portsmouth Naval Shipyard, July 11. 1918" (ARC Identifier 6861883) for information concerning the galvanization process used in the construction of engines and ships.