1/3 Guinea - George III

The 1/3 guinea denomination was revived in 1797 specifically to address a professional fee problem: guineas had long been the unit of account for doctors, lawyers, and other professionals, but no convenient fractional coin existed for smaller consultations and settlements. The denomination had last appeared under George II and was brought back under pressure from the medical profession in particular, who found shillings an awkward substitute.

Production ran only three years before the denomination was quietly abandoned — too small in diameter to handle comfortably and too limited in purchasing range to fill a genuine commercial gap.