Hard to find PERKINS "PERKO" galvanized metal and brass all-round navigation light marine lantern with emerald-green lens used by fishermen while trawling at night. The brass maker's plate mounted on the shoulder is marked "PERKO MANUFACTURERS / PERKINS MARINE LAMP & HARDWARE CORP. / BROOKLYN, N.Y., U.S.A.". Bottom fitted with two tie-down rings, 360 degree Fresnel glass lens with brass wire guards, removable brass pinch-style font. Manufactured in the first quarter of the 20th century. Dimensions: 12 inches tall exclusive of ring handle, 45 1/42 inch diameter base. Missing one wire guard on back. Retains a pleasing pewter grey patina and weathered brass chimney.