Commonwealth pattern 1651 Sixpence by David Ramage, extremely rare

Commonwealth (1649-60), pattern silver Sixpence, 1651, engraved by David Ramage (died 1661), made in direct competition to the milled work by Frenchman Pierre Blondeau, English shield with cross of St George within beaded inner border, legends surrounding with toothed outer border, rendered in English language with mullet stops, * TRVTH * AND * PEACE,rev. Irish arms with eight strings to harp within beaded border, legend with toothed outer border surrounding, rendered in English language with mullet stops, * TRVTH * AND * PEACE,edge inscription in raised letters and dated, * TRVTH * AND * PEACE * 1651, weight 8.21g (N.2735; Bull 219 R5; ESC 1499 R5).Attractive dark tone with brighter highlights to raised portions, dig in obverse legend and a few other light surface marks both sides, very fine, if not a little stronger in parts, extremely rare, no more than five in private hands.