Ae23 - Claudius 41-54 Ad (Macedonia - Shield)?

Very neat! The Macedonian shield design is one that Alexander the Great issued in huge numbers (and would continue being issued bearing his name for centuries). For Alexander, the legend (featuring on the obverse, a macedonian helmet) was B - A (King Alexander), while this coin substitutes KLAVDIOS KAESAR (Claudius Caesar) and SEBASTOS MACEDONION (loosely translating to 'King of Macedonia'. It is a blatant attempt to try to compare Claudius to Alexander and let the citizens know that Rome has arrived and is in control now, while maintaining the old iconography that citizens of the provinces were used to. The Greeks under the empire strove hard to maintain their cultural identity, but the old greek designs on the coins would be almost entirely supplanted by Roman ones eventually.