Sliver Browning - Coin Community Forum

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Author	Replies: 8 / Views: 1,438
xd99xd Valued Member Canada 174 Posts	Posted 03/23/2015 1:33 pm So going through my grandmas coins she horded (she completely forgot what was in here) I found these. How do I stop the sliver from browning, note these where keep in a degrading plastic bags scince the mid 70s And is this a planchet flaw it looks of a little bit And what years are sliver thanks Edited by xd99xd 03/23/2015 1:49 pm Report this Post to the Staff

kuh_85 Pillar of the Community Canada 2366 Posts	Posted 03/23/2015 1:56 pm Don't polish or clean them. Keep them in airtight containers. 1968 was the last year that some were silver and the first nickel coins came in. Just use a magnet to check. Non-magnetic = silver. Report this Post to the Staff
xd99xd Valued Member Canada 174 Posts	Posted 03/23/2015 2:28 pm Thanks Dont have any airtight coin containers are zip lock containers airtight enough for them. And what about acetone dipping there is some gule on one and pvc damage on a few, is acetone safe. Report this Post to the Staff
bpoc1 Rest in Peace United States 4078 Posts	Posted 03/23/2015 2:45 pm Quote: zip lock containers airtight enough for them. Yes. Quote: is acetone safe. Yes on coins but it is highly flammable. Use the forum search to read up on how to use it safely. Report this Post to the Staff
xd99xd Valued Member Canada 174 Posts	Posted 03/23/2015 3:09 pm Thanks, I will stick them in a ziplock, she gave all of them to me right now because she doesn't need them. Time to see if I can get her notes Report this Post to the Staff
AgCoinAu Pillar of the Community Canada 3049 Posts	Posted 03/23/2015 5:00 pm For acetone: just be in a very well ventilated space that has no open sourced flame anywhere close! (There's a big stink and the stuff will burn but the flmae is invisible to the eye) ziplocks are just fine... and great to make them air sealed... The two coins you have shown are the result of toning .. (that's my belief) Acetone will not remove toning. But it should do wonders for ya with that glue and other adhesives. (if acetone doesn't work try xylene and then acetone again) I use only a small amount of acetone for each coin.. as the contaminants are then suspended in the acetone solution and you don't want that to transfer to the next coin... (I use small baby jar lids .. fill it just past the point where a coin would be submerged and drop the coin in there for a little soak and then rinse with clean acetone and let it all evaporate off.. Report this Post to the Staff
sel_69l Bedrock of the Community Australia 21788 Posts	Posted 03/23/2015 6:57 pm You can get a patchy brown tone on silver coins sometimes. Depends on the immediate environment nest to the coins. Silver oxide and sulfide is normally black, but is in an impure form here. Acetone will not remove the inorganics, but acetone will not harm further. If they are strictly melt value only, you could clean them with chemicals, but there is absolutely no value to be gained, just store them loose in a clip lock bag. Report this Post to the Staff
xd99xd Valued Member Canada 174 Posts	Posted 03/23/2015 7:23 pm Not sure what grade they are but I will post pictures later Report this Post to the Staff
xd99xd Valued Member Canada 174 Posts	Posted 03/24/2015 02:14 am The brown is easier to see on the dimes then quarters http://s1298.photobucket.com/user/b...ort=3&page=1 Report this Post to the Staff
	Replies: 8 / Views: 1,438

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