Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to J J Fabie, Chasham Pole Common, Bucks 'Replying to your letter of the 6th instant, I have just copied down the inscription on the back of the portrait of Viviani and it runs as follows: "Vincensic Viviani, Orginiale, D Plero Dandani, No. 4". The inscription on the reverse of the Gallileo Medal is as follows: "Natus Pisia in Italia. An. M.D.I.XIV. Obit. An. M.DO.XLII. Series Numismation Universalis Virorum Illustrium. M.DOCC.XVIII. Durand Edidit". Trusting this is the information you require.' 13 February 1915