CGN Blog

Welcome to CGN!

Posted by Bruce Raplee on

Hi, Greetings to all. We hope you may find some interesting world and ancient coins in our store. Don't hesitate to reach out if you have questions about any coin or suggestions on how we can improve our store or service. Respectfully, Bruce

Read more →


Are your coins authentic?

Posted by Bruce Raplee on

Yes! All of the coins we sell are guaranteed authentic, unless otherwise clearly identified as a copy.  Many of the coins in our inventory have been certified as authentic by NGC (Numismatic Guaranty Company) and PCGS (Professional Coin Grading Service).  In addition these companies assign a quality grade to the coin.  The coins are encapsulated in a plastic holder to preserve and protect the coin from damage.  The NGC or PCGS holder enhances the value of the coin and confidence that it is authentic as well as enhancing the resale value.

Read more →


Dating Ancient Roman Empire Coins

Posted by Bruce Raplee on

Many Roman Empire coins from the 1st and 2nd Century CE can be date to a specific year or to +/- one year.  The emperors used titles on their coinage which permits precise dating. The Tribunician Power (TR P or TR POT on coins) was renewed on an annual basis.  Since the Roman calendar did not correspond with the modern calendar we can assign the date for an Emperor's specific Tribunican Power to a two year range. For example the denarius of Marcus Aurelius shown is dated to 176/177 CE due to the Tribunician Power (TR P XXXI) given on the...

Read more →


Dating Roman Egypt Alexandria Coins

Posted by Bruce Raplee on

After the defeat of Mark Antony and Cleopatra, Octivan later to be called Augustus Caesar made Egypt his personal property and instituted a unique coinage for that country.  The coins show the head of the current emperor and a very large diversity of Roman, Greek and Egyptian themes on the reverse side of the coin.  Nearly all of the coins show the Emperor's Alexandria reign year date.  This allows us to date the coins to +/- one year. The coin shown is a tetradrachm of Severus Alexander (reigned 222 to 235 CE) with the reverse Greek date IB representing the...

Read more →