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new manufacturers installations collection restorations timeline identification publications glossary mailing list site map links about contact	lighting trades limited Welsbach British Made Gas Mantles Published in: APLE Conference Programme, September 1937 Click here for larger scan Street Lighting By Gas Published in: APLE Conference Programme, September 1945 Click here for larger scan reliable gas mantles Published in: APLE Conference Programme, September 1946 Click here for larger scan better light Published in: APLE Conference Programme, September 1947 Click here for larger scan