Details
A late [?]17th-Century brass ring dial,
unsigned, the interior surface of the ring with punched numerals and engraved hour lines, the outer ring with calendar scales, with sliding inner marker ring and fixed suspension loop -- 1in. (3.8cm.) dia.
See Colour Illustration
unsigned, the interior surface of the ring with punched numerals and engraved hour lines, the outer ring with calendar scales, with sliding inner marker ring and fixed suspension loop -- 1in. (3.8cm.) dia.
See Colour Illustration