obverse
The face of the coin which bears the more important device. Due to ambiguities that sometimes exist, many numismatists prefer to use the term for the side struck by the lower (anvil) die.

proconsul, -lis
A quite high ranking official, vir spectabilis according to the rank of the senate, who was inequable only to the Domestikos of the Scholae and to the Magister Militum per Orientem. The proconsul usually served as a governor of the Imperial provinces (i.e. in Asia Minor the provinces of Asia and Cappadocia). The office was demoted from the 9th century onwards and the term was in use until the 12th century meaning a dignity.

reverse
The back view of a coin where the issuing authority is usually inscribed.