Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; W. T. L. Becker Esq., Colour Photographs Ltd., 1 Wilton Place SW1 Explains that Mr. [Alan Archibald] Campbell Swinton has highlighted that the Colour Photographs Ltd may want to give a demonstration as to how colour photos are produced. Sends a Schedule to be filled and returned for the 20 June [Ladies] Conversazione [Soiree]. Explains that displays of any prospectus of a commercial nature is not customary and points out the schedule encourages a description of the scientific nature of the process. [Enclosure not present.] 24 May 1928