Production dates, amounts, and estimated surviving examples are given for each mint. Estimates are based on an average 1–5% survival rate of coins of the period due to circulation, clipping, and melting so counts may vary from lists of known examples of specific issues.
In operation from June 1648 to March 25, 1649, past the execution of Charles I in support of Charles II. Issues can read "OBS PC" (obsidium → "siege"). Original production is estimated at 300-600 coins with about 8-12 surviving. Issues include Halfcrowns and Shillings.
DVM : SPIRO : SPERO. OBS / P XII C |
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| Hird 276, Brooker 1233, North 2647, S 3149. Lozenge. Castle siege. | |
DVM : SPIRO : SPERO. OBS / P XII C |
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| Hird 277, North 2647, S 3149. Round. Castle siege. Ex Martin Hughes Collection. | |