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new manufacturers installations collection restorations timeline identification publications glossary mailing list site map links about contact	johnston brothers cornolith - there is no substitute Published in: Public Lighting Engineer No. 10 Vol. 3, June 1938 Published in: Public Lighting Engineer No. 11 Vol. 3, September 1938 Published in: Public Lighting Engineer No. 12 Vol. 4, January 1939 Published in: Public Lighting Engineer No. 14 Vol. 4, July 1939 Click here for larger scan cornolith lamp columns Published in: APLE Conference Programme, September 1947 Click here for larger scan