I need HELP with cleaning old silver pesetas.

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Good Morning.
Recently a relative gave me a valuable coin collection consisting of silver pesetas (denominations of 1, 2 and 5 Pesetas) which were stored in rolls. Some of these coins were rolled in a special type of paper until this day they remain intact, however, other coins were rolled in newspaper and they are now covered in some greenish-bluish oxide, which diminishes their value and looks absolutely horrible, I'm horrified. The 1 and 2 Pesetas are .835 silver while the 5 Pesetas are .900 silver. I was browsing forums and they all recomended acetone, but acetone didn't work for me. WHAT SHOULD I DO?!!
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Posting some pictures would help to try to determine the exact issue.
Just call me Bram

Oh! And do read my profile page before you open a swap ...
Quote: "BramVB"​Welcome to Numista!

​Posting some pictures would help to try to determine the exact issue.
Here it is, first three pictures
Quote: "BramVB"​Welcome to Numista!

​Posting some pictures would help to try to determine the exact issue.

​More pictures
It would be very interesting to see how this could be cleaned ,In my view point these coins cannot be cleaned complete, these coins seems to be metal dector find coins ,probably damaged by sea water with very hard crust on top .
coin collector.....
you can try bath in acetone 24 hours and then gentle scrub with wood bristle brush.
Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
The green seems to exhibit corrosion. The coins may be pitted. Any cleaning could just make them look worse. I'm sure either cleaned or unclean that at this point they have a reduced value.
Library Media Specialist, columnist, collector, and gardener...
I agree you can try soaking it in acetone But I wouldn't scrub at it, rub it with a soft cotton cloth like a car polishing cloth to see if it comes off.

Just out of interest, why did you take a picture of it sitting on your foot?
What? Me Worry
Last resort is electrolysis. I wont recommend any particular article on it but you can research it on Google and educate yourself about this method. It is potentially hazardous and it is your decision as to whether you are comfortable with trying this method yourself. Perhaps take the worst coin that is too far gone anyway in your opinion and attempt it on that one first before using it on the others if you feel you have satisfactory results. Good luck.
Soak in olive oil for a few weeks then remove oil by dipping in alcohol and allow to dry. Repeat process if needed.
Quote: "neilithicman"
​Just out of interest, why did you take a picture of it sitting on your foot?
​ You beat me on that. Quite an iteresting choice.
Catalogue administrator
I think that the coin has been damaged due to extreme corrosion... there is nothing much you can do beyond a point using gentle cleaning techniques. You might have to treat with Acetone or electrolysis
Quote: "sarikanair"​I think that the coin has been damaged due to extreme corrosion... there is nothing much you can do beyond a point using gentle cleaning techniques. You might have to treat with Acetone or electrolysis
​It's been 3 days in Acetone already though :(

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