Great Britain. Proof Halfpenny, 1877. S.3956; KM-754. Victoria. Obverse; Wyon's young 'bun head' bust of Queen left. Reverse; Britannia seated. Date below. A stunning bronze Proof with much evidence of mint red, and eye catching mirror fields. Freeman rates this coin as R18 (only 6-15 specimens known) and this may be the finest extant example. NGC graded Proof 66 Brown. Estimate Value $1,300 - 1,600