A George IV silver Gibson medicine spoon

A George IV silver Gibson medicine spoon,

over-stamped with maker's mark of Charles Gibson, London 1928, London 1828,

the bowl with a hinged cover, tapering handle, the end inscribed 'C. Gibson, Inventor, 71 Bishopsgate St. Within', length 13.9cm, approx. weight 1.3oz.

For other examples see, 'Antique Medical Instruments', by Elizabeth Bennion, Sotheby, Parke, Bernet, 1979, page 251.