細節
An 18th-Century Augsburg-pattern brass octagonal compass sundial,
signed on the base of the compass box L.T.M. (Ludwig Theodatus Mller) also engraved with the latitudes of Li abon, Corfu 39°; Mailand, Lion 45°; Wien 46°; Prag 50°; and Stockholm 60°, the hour ring engraved in Roman numerals, with spring-loaded gnomon, folding latitude arc, engraved horizontal plate, the compass with blue iron needle and silvered dial -- 2in. (5.1cm.) long
See Illustration
signed on the base of the compass box L.T.M. (Ludwig Theodatus Mller) also engraved with the latitudes of Li abon, Corfu 39°; Mailand, Lion 45°; Wien 46°; Prag 50°; and Stockholm 60°, the hour ring engraved in Roman numerals, with spring-loaded gnomon, folding latitude arc, engraved horizontal plate, the compass with blue iron needle and silvered dial -- 2in. (5.1cm.) long
See Illustration