Letter from A. F. Spooner, Chartered Patent Agent, 323 High Holborn, London, to James Mackenzie Davidson Notes that they have collected from Cox's about £30 in royalties since October 1905; against which there is the commission on the collection of such royalties which amounts to £3, and the seventh, eigth and ninth interrupter renowal fees amounting to £27. Notes that, on these grounds, there is a small amount of money owed to Mackenzie Davidson. Promises to have a full account made out and rendered to Mackenzie Davidson before his next payment of the interrupter patent to put matters straight. 25 January 1909