Keystoneware Boat Signal Lante

This is an American marine oil lantern by Keystoneware and is marked with its logo on the back handle. It is believed to date from the early to mid-20th century. These were used as signaling devices between boats and shore stations before modern electric replacements. A beautifully preserved example includes a clear bullseye lens, operable signal shutter and original oil burner. It is constructed of factory-black painted steel is exceptionally complete and shows little sign of use. 8.5” H x 4" D