Watch List notes:

COMMONWEALTH, (1649 - 1660), silver crown, 1656/4, (30.00 g), reverse date 1656 with last 6 over 4, (S.3214, N.2721, ESC 9). Attractive dark grey tone with small flan crack at 4.30 on obverse, some double striking in obverse legend, round very fine and scarce.

Ex Robert Tonner Collection, from Noble Numismatics Sale 92, November 2009, The Cornwall Collection (lot 3121), and
Spink Australia, Sale No.6 (lot 1839), previously from the S.V. Hagley Collection.