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| Issuer | Byzantine Empire |
|---|---|
| Year | 656-659 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Log in to see details |
| Weight | 3.9 g |
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| Obverse description | Log in to see details |
|---|---|
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| Obverse lettering | Log in to see details |
| Reverse description | Large letter M (the Greek numeral mark of value for 40 nummi) occupies the centre of the field, surmounted by a cross above. The regnal year numeral appears in two lines across the centre of the M, with the letter E (epsilon) visible in the lower centre. To the left and right of the M are the letters A N N O in the field. Below the M, in the exergue, the mint mark CON denotes Constantinople. A dotted border runs along the coin's periphery. |
| Reverse script | Latin |
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| Edge | Log in to see details |
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| Additional information |
These issues fall within the most turbulent stretch of Constans II's reign — the years immediately following the Arab conquest of Egypt, which severed Byzantium from its wealthiest province and devastated imperial revenues. The fiscal strain is directly legible in the coinage: flans from this period are frequently underweight, poorly prepared, and struck off-center at rates that dwarf earlier Constantinople production.
BCV 1010 corresponds to a phase when the follis had already shed most of its weight across successive reductions since Justinian. By the 650s the 40-nummi piece was a denomination in name only.