细节
An 18th-Century brass pocket compass sundial,
signed on the silvered hour ring Lynch, Dublin, with engraved compass rose and folding gnomon (needle, glass and cover missing) -- 2¾in. (7cm.) dia.
signed on the silvered hour ring Lynch, Dublin, with engraved compass rose and folding gnomon (needle, glass and cover missing) -- 2¾in. (7cm.) dia.