How are sunken coins cleaned and handled?

I found this on Okaloosa Island in 2004.

 

Log in or Sign up to hide this ad.

Looks real good?

 

This.

You could pay me $1 to "conserve" your coins and I will you $1 to "conserve" mine. We will just include the receipts in our grading submissions. Seems easy enough to avoid get them labeled "cleaned"

 

Hi,

I just bought an 1783 El Cazador shipwrecked Silver 8 Reales coin NGC slabbed and certified coin. The coin is in great condition. But the black discoloration on the tails side of the coin really hides the condition and beauty of the coin. What would be the best way to get the coin conserved to be as beautiful as it can be. I want to bring out the beauty of the almost flawless coin without risking doing any damage to it.
Thanks,
Mike

 

I’m AVERAGE

 

It's an interesting thread. I was recently watching an Expedition Unknown repeat where Josh Gates visited NGC HQ's conservation room of such coins. He also showed a factory line(!) where coins were being entombed (ancient collector bias).

I bought a small,inexpensive Spanish silver coin at a local coin show, advertised as being from a shipwreck.



TIBERIUS & DIVUS AUGUSTUS AR tetradrachm. Alexandria, Egypt. TIBEPIOY KAISAR SEBASTOS, laureate head right. Reverse - QEOS SEBASTOS, radiate head of Divus Augustus right. Milne 38, Koln 48. 24mm, 8.3g.

I bought this ugly Tiberius Alexandria tetradrachm because it was likely a sea find, which I found intriguing. One doesn't find that many ancient sea finds for sale. The base metals had leached out, leaving it light.

 

nerosmyfavorite68, posted: "It's an interesting thread. I was recently watching an Expedition Unknown repeat where Josh Gates visited NGC HQ's conservation room of such coins. He also showed a factory line(!) where coins were being entombed (ancient collector bias).

Can you provide any mor info about that EU show like the name, subject, location, or when it aired?

 

Edit: It's this episode:

9.6 "America's Titanic" August 25, 2021 N/A
Josh joins a salvage team off the North Carolina coast to investigate the sunken steamship Pulaski and its hoard of rare coins.