6014900 Wren Medal, bearing the portrait of English architect Sir Christopher Wren and an image of his best-known work, St Paul\'s Cathedral, London, executed by William Wilson and Benjamin Wyon (engraving) by English School, (19th century); Private Collection; (add.info.: Wren Medal, bearing the portrait of English architect Sir Christopher Wren and an image of his best-known work, St Paul\'s Cathedral, London, executed by William Wilson and Benjamin Wyon.); 穢 Look and Learn.