Letter from [Alan Archibald Campbell] Swinton, to F. P. Eckersley [Esquire] Acknowledges receipt of a previous letter and requests further information as to what kind of article is required of him, and of the nature of the Handbook on Television, of which he has not yet heard. Offers to write a brief history of the progress of television up to date, enquiring if there is a specific aspect he should address. 21 March 1929