The safety lamp was used in the powder room of the Cairo to light the magazine. It was placed inside of a box that was part of the magazine bulkhead. It was lined with soldered sheets of copper, and when in use had a few drops of water in it. To throw as much light as possible into the magazine room, the bulkhead opening was covered by two panes of glasses. The glass closest to the magazine was framed and easily removed. A small dome or reversed funnel of copper was placed above the lamp and fitted with a pipe to redirect the smoke.
Copper, wood, L 6, Tube Dia 6, L 29.5, W 25.2, Th 2.4 cm
Black & white postcard showing a painting of USS Constitution under sail. 3/4 starboard bow view. Another ship is visible in distance to the left. "U.S. Frigate / Constitution" in black in upper left. Reverse printed in black.
Postcard showing the ship's wheel and binnacle of USS Constitution. View is looking aft, toward the port stern. "Wheel and Compass / Old Ironsides" in white at bottom. Also in white, in lower right, "Copyright 1931 / R.E. McIntyre / Worcester Mass."
Amidships views of USS Constellation. Recruits/Apprentices are engaged in semaphore visual signaling practice. Seven are standing on hammock rail, remainder are on pier. Written in white along bottom: "Views from U.S. Naval Training Station....Signal School". In red at top left, "Newport, R.I. Visual Signaling". Print on reverse in brown ink. Manuscript reads Well how is Henry?/I am getting anxious/to see. Suppose you/are hine a fine/time at Grandma's/With love,/Matilda". Addressed to "Master Henry Rohing/527 South Street/ Mauch Chunk/Pa."
Deck scene aboard an unidentified Union naval vessel during the Civil War. Image is looking forward from behind mizzen mast. Guns line both sides of the deck. A Dahlgren gun is mounted on a pivot carriage on the stern. Some crew visible on deck.