Romanorum ancient coins
COMMODUS AD 180-192 Denomination: AE23 Minted in Tomis, Moesia
Inferior, Year: c. AD 180
CRISPUS (317-326) Mint mark: STR (minted in Trier) Year: AD 320
The wax is applied after a long and careful cleaning process and once
the coin is stabilised to ensure that the natural decaying process
will be radically slowed down. And of course, it adds to the aesthetic
value of the coin, as it brings out the natural patina colours.