Copy letter from Robert William Frederick Harrison to Sir William [Henry Mahoney] Christie KCB, FRS 'Dear Sir William, It would be very convenient if you could deliver this frames for your Soiree exhibit here, in the course of Monday afternoon, say before 6pm. We shall endeavour to get the lighting done by the Linolite Co., and in that event they will wish to know the exact situation of affairs in order to make the necessary attachments.' 8 May 1909