Early Stuart and Civil War
Death of Charles I, 1649, a silver-gilt medal by T. Rawlins, bare-headed bust left with falling lace collar and elaborate armour, svccessor vervs vtrivsque, rev. inexpvgnabilis 1648, a hammer striking a diamond on an anvil, 42mm, 15.23g (Platt I, p.246, type C [C1, this item]; MI I, 341/189). Good very fine and very rare £2,000-£2,600
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In this metaphor, Charles's faith and fortitude are compared to a diamond.