The original coin was used in Cilicia (today's Turkey) in 162 AD during the reign of emperor Lucius Verus and co-emperor Marcus Aurelius.This coin has a crab with the star above it symbol of the Altar of Apollo in the Temple of the Oracles.
 
Handmade solid sterling silver Roman coin reproduction. 
One sided coin.
The coin is about 12mm.
 
Solid sterling silver ear wire.