Copy letter from an unknown correspondent, to Messrs Drake & Gorham 'In answer to your memo [memorandum] of 15th inst. [instant] I find that we have a sufficient stock of ordinary 16 candle p.[paraffin] lamps, but we want some 50 c-p & also some of the old-fashioned brush lamps, which we still use for the library cornice, and I enclose order accordingly'. 21 September 1893