Copy letter from Robert William Frederick Harrison to The British Vacuum Cleaner Company Ltd, Parson's Green Lane, SW 'Please send here on Saturday, July 30, to fetch 19 carpets, rugs and slips for cleaning, and book an order to send here during the last half of August, as arranged with the housekeeper, for vacuum cleaning of carpets in five rooms, namely, Ground Floor, Secretaries Room, Sleeping Sickness Room and Instrument Room; First Floor, Saloon and Main Library.' 27 July 1910