Copy letter from Robert William Frederick Harrison, to Messrs Partridge & Cooper Enquires if they would be able to undertake to supply any form of loose lead register that would serve in lieu of the ordinary card catalogue for a catalogue of periodical publications. The leaves would have to be of very strong, stiff paper, and would have to be specially rule[d?] to requirements, and each book would have to be capable of holding 300 to 400 leaves. 17 February 1910