First-order lighthouse optic, from Anvil Point, Swanage, with one gas burner assembly plus eleven autofor mantles No.702 and miscellaneous parts which include seven support rollers, 1881. First-order lighthouse optic 1881
Lighthouse optic, plus light standard, from the Eilean Glas lighthouse, Island of Scalpay, Outer Hebrides, Scotland, 1907 Lighthouse optic, plus light standard, from the Eilean Glas lighthouse, 1907