British Admiralty / Royal Navy pattern copper ship's Port side navigation lantern. Brass fittings, glass fresnel lens. Applied brass plaque stamped TELFORD, GRIER & MACKAY LTD, GLASGOW.
The lantern is also stamped: TELFORD, GRIER & MACKAY LTD, GLASGOW, 1917. Height to top of chimney 16" / 40 cm - max 18" / 46 cm.