Superb and rare round equatorial sundial in gilt brass, signed: "CHRISTOPHORUS SCHISSLER ME FECIT" located in Augsbourg "AUGUSTE VINDELICORUM" and dated "ANNO DOMINI 1558". Features a large compass in the centre. The lower section is decorated with foliage and a list of latitudes.
H: 2; Diam: 3 in. (Small adjustment arc missing)
Henry Michel quotes him as "the most famous craftsman of his time".
Bibliography: H. Michel Étude d'une collection d'instruments anciens de mathématique, Antwerp, 1939, p. 100
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