Obv: MATHIAS.SOWERBY , around bust of Charles 11 left.
Rev: (sun)IN.BARNARD.CASTELL , around cable inner circle, M.S with .(rosette). above and below.
M Dickinson 13. Dies as Norweb 1033.

Although undated, this issue can be dated to 1666 by the reverse initial mark, sun or etoile.

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