Great Britain. Pattern Sixpence, 1799. Stainton-31c. George III. By William Fullarton. Dies by Milton. Obverse, bust of king left. Reverse, crowned cruciform shields with garter star in center and Prince of Wales feathers in angles. Pastel blue toning over Proof fields. Uncirculated and very rare thus. NGC graded Proof 66. Estimated Value $750 - 850