Letter from [Percy Fitzpatrick] Rowell, Secretary, The Institution of Electrical Engineers, Savoy Place, Victoria Embankment, London, W. C. 2., to [Alan Archibald Campbell] Swinton, F. R. S., 40 Chester Square, S. W. 1. Making arrangements for himself and Swinton to call at Messrs. Pope & Sons, to see the four marble busts of Galileo, Volta, Torricelli, and Galvani, offered for sale to the Institution for a lump sum of £100. 19 April 1929