Book titled "Army and Navy Service Book," printed by the National Lutheran Commission for Soldiers' and Sailors' Welfare, 1918. Includes prayers and hymns with music. 107 typed pages.
Booklet of rigging blueprints for the Curtiss N-9, Curtiss R-3, Curtiss R-6 (Model 2A), and Curtiss Model H-12 Large America aircraft, circa 1916-1918. 25-page booklet bound with brass brads, Herlofson's name faintly visible on front cover and back…
Photographic postcard of U.S. Navy recruits standing in formation awaiting Retreat Call, 1917.
Inscription: "Retreat at Sundown. Copyright I.F.S 1917."
Photographic postcard of U.S. Navy recruits practicing tying knots during a seamanship drill, 1917. Inscription: "2:15. Seamanship drill for an hour. Copyright I.F.S 1917."