A guide to the Mediaeval Room and to the specimens of mediaeval and later times in the gold ornament room : with fourteen plates and a hundred and ninety-four illustrations (1907)
British Museum. Dept. of British and Mediaeval Antiquities and Ethnography, Dalton, O. M. (Ormonde Maddock), 1866-1945, Read, Charles Hercules, Sir, 1857-1929 · [London] : Printed by order of the Trustees · leaf 138
is used, DIALS 105 the sliding ring is pushed round until the hole is opposite the dayof the month ; the instrument is then held by its suspension-ringand turned to the sun, so that the rays of light passing throughthe hole form a bright spot which indicates the time. King-dialswere very popular in… … Fig. 89.—Nocturnal, by Humfrey Cole, about 1590. when the instrument is in use : a bridge with a cursor formsa diameter of the larger ring, and in the middle of this there isa small hole. The outer ring, which represents the meridian ofthe place where the user of the instrument is, has engraved…
British Museum. Dept. of British and Mediaeval Antiquities and Ethnography · Art objects · Art, Medieval
Internet Archive · Pontifical Institute of Mediaeval Studies Library · Public Domain Mark 1.0. Free to use for anything.
