Well, the curule chair featured on
Considia 2 could turn into that structure on your coin, but it's clearly no longer a chair anybody would actually sit on; the
stylized and unclear designs on your coin mean that it'd be hard to establish its source-coin or source-coins with certainty. The
legend on your coin is garbled as well, but the characters look more
Roman than Greek to me. If the
weight of your specimen's not far from 3 grams, that would also suggest a
denarius.