DETAILS 368 came from Caravaggio's shield-painting, Medusa (1595-7) - showing the Gorgon's head at the instant of decapitation. It's in the Uffizi galleries in Florence.
The first three correct answers for Details 368 came from Emma Paggini of London W14; Rita Sugrue of Henley-on-Thames, Oxfordshire; and Mrs Judith Casey of Winkfield, Berkshire.
Each receives a bottle of champagne, as will this week's winners. Answers, on a postcard (to arrive by Wed 4 Feb), to: DETAILS 370, IoS, 1 Canada Square, London E14 5DL.