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Class 4a (1250 - 1251)
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Class 4ab (1250 - 1251)
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Class 4b (1250 - 1251)
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All class 4 coins are scarce. The class was not sub-divided in Lawrence’s original classification, although he noted the early and late varieties of the crown.
Sub-classes 4a and 4b are only known of London. Sub-class 4ab was struck at London, Bury and Canterbury.