Copy letter from Robert William Frederick Harrison to The Manager, The Library Bureau 'A consignment of 1000 large Catalogue cards with guides and a two tray cabinet have arrived here, but I shall be obliged by your referring to the order set, to verify the number ordered. The original order was for 4000 cards in a 4-tray cabinet, and I have a recollection of modifying that subsequently as regards the number of cards; but unfortunately I cannot put my hand on a copy of the revised order. I am certainly under the impression that I ordered more than 1000 cards. The 2-tray cabinet is, I presume, intended for only 1000 cards altogether - it certainly would not hold 1000 comfortably in each tray.' 8 January 1912