Selwyn College, Cambridge

The dial is mounted on the north range of Old Court just above ground floor window level, to the right of staircase D, and declines about 4° west of south. It was designed by Frank King and made by the Cardozo Kindersley workshops in Cambridge. It has Babylonian and Italian hour-lines (showing hours since sunrise and since the previous sunset). The hours are read from the shadow of the brass nodus ball (this type of dial does not require a polar-directed gnomon). Across the top section of the dial, above the winter solstice curve, is a rising sun with the inscription ’ΚΑΙΡΟΝ ΓΝΩΘΙ’ (Know the time). Across the lower part, below the summer solstice, is inscribed ’Collegio suo / lactarius Eboracensis / me dono dedit’ (To his college the Yorkshire dairyman gave me as a gift). Around the rim of the dial are inscribed ’Babylonian hours since sunrise’ and ’Italian hours since sunset’. Ref: BSS Bulletin 22(iii), Sept 2010, pp 2-8, and 22(iv), Dec 2010, pp 9-11.