Message:

<p>[QUOTE=&quot;cmezner, post: 5143010, member: 87809&quot;]All the Tetras are breathtaking ! Impressive. </p><p>I have one that I shared in another thread sometime ago, I have just a question</p><p><br /></p><p><br /></p><p><br /></p><p>trying to understand how the numismatists calculate the date, it is like a riddle - is the following reasoning correct?</p><p><br /></p><p>As K = 20, Θ = 9 it is the year 29 of the Actian Era. The Actian Era dates from the victory of Caesar over Antony at Actium in 31 BC. If the era started before the common era (BC or BCE), to determine the common era (AD or CE) date, subtract the era start year from the date on the coin.</p><p>&nbsp;</p><p>31 - 29 = 2 BC</p><p>Cos XII = 12th consulate Augustus became consul for the 12th time on January 1, 5BC</p><p><br /></p><p>do we subtract 2 BC from 5 BC: 5 - 2 = 3 BC to date the tetradrachm?[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in