A Richard Whitehead silver Butterfield-type sundial, English, circa 1690, signed Richard Whitehead Fecit, of standard Butterfield design with f...

A Henry Wynne silver universal equinoctial ring dial, English, late 17th century, signed Henry Wynne fecit, engraved with latitudes of thirty e...

A fine Louis Chapotot silver inclining dial, French, circa 1700, signed CHAPOTOT A PARIS, the octagonal universal equinoctial dial with engrave...

A miniature silver mounted lodestone, probably English, circa 1700, the lodestone of oval section mounted top and base with silver caps with sc...

A silver combined perpetual calendar and sundial, German, late 17th century, the obverse with seven apertures for the normal signs and hours, th...

A silver perpetual calendar, German, late 18th century, two silver plates (now lacking ivory note leaves), one leaf with volvelle and apertures ...