It's a long process, soak in distilled water for a week, agitate, rinse, and repeat..... for weeks, and no guarantee you will have anything of interest.
So far, the only one I have that can be verified by age and name (by a coin dude) is from 338 AD ....which confuses me..... how long ago was 338AD ?
I get the AD thing, but the birth of Jesus is subject to debate...so, is there an approximation?
The AD338 coin was minted when ....."Constantine II (Latin: Flavius Claudius Constantinus; February 316 – 340) was a Roman emperor from 337 to 340. Son of Constantine the Great and co-emperor alongside his brothers, his attempt to exert his perceived rights of primogeniture led to his death in a failed invasion of Italy in 340."


I still have a few more to do.....