Take a look at the blog One coin at a time. Brett Telford is the owner of a fine collection of coins with The Twelve Caesars.
The entry “DOMITIAN!!!!!” displays two very fine photographs of a coin with Domitian.
Ethelbert Stauffer was a German Protestant theologian who held that gematria, the numerology of the Hebrew language and alphabet, could be used to explain the Biblical number 666. Stauffer computed this “Number of the Beast” using the short form of Domitian’s names and titles: Imperator Caesar Domitianus Augustus Germanicus…
How? Don’t hesitate to visit this entry and Mr. Telford’s collection.