An imitation of a tetarteron of Alexios I (1081-1118), post-reform (1092) of the mint of Constantinople. Reference for the real issue (and not this imitation) can be found in Dumbarton Oaks Coins vol 4, no 33. Julian Baker of the Ashmolean Museum (Oxford) indicated that it was a good imitation, though the style was not quite right, and the coin itself is too round and not irregular enough to be an official issue of the era. That said, it is probably contemporary as these have very little colle
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