Letter from [Alan Archibald Campbell] Swinton, to E. H. R. Trenow [Esquire] Acknowledges Trenow's telephone message and highlights paragraph 5 of his previous letter, which deals with the G. P. O. telephone cables and understands that the cable in the Post Office is complaining od as damaged is a telegraph cable. Asks to be corrected if wrong but he understood since first hearing of the Post Office complaints. 23 April 1929