1/2 oz mexican libertad gold 2017

[ZatStackz]

On 27/09/2019 at 02:54, silverking1 said:

Purchase did not turn out too well, received coin but has some red spots, so only worth spot price, i was thinking of having it graded, but i don't think that would turn out too well now.

Red spots seem to be fairly common on the BU libertads.  I have a 2018 that I had conserved and graded.  Red spots came off and graded an MS70.

[silverking1]

Thanks Guys

i am waiting for a 29mm capsule pack from the royal mint, came in a slip.

then i think i will have it conserver and graded with the mexico special label, ( thanks for that info)

any idea of cost, never graded any of my silver ?

      

[ZatStackz]

8 hours ago, silverking1 said:

any idea of cost, never graded any of my silver ?

https://thesilverforum.com/topic/7393-ngc-grading-submissions-open/page/122/

 

[Serendipity]

On 30/09/2019 at 04:32, ZatStackz said:

Red spots seem to be fairly common on the BU libertads.  I have a 2018 that I had conserved and graded.  Red spots came off and graded an MS70.

How does the Numismatic Conservation Services (NCS) “conserve” gold coins with red spots? Am I correct in thinking they remove the red spots with acetone? I do have a 2018 1/4oz Gold Libertad BU but fortunately without red spots. I did, however, have a 1oz gold coin with a visible bright red spot and successfully removed the red spot by an electrochemical method.

[Elements]

9 minutes ago, Serendipity said:

How does the Numismatic Conservation Services (NCS) “conserve” gold coins with red spots? Am I correct in thinking they remove the red spots with acetone? I do have a 2018 1/4oz Gold Libertad BU but fortunately without red spots. I did, however, have a 1oz gold coin with a visible bright red spot and successfully removed the red spot by an electrochemical method.

No acetone won’t do anything to the spots. Pretty good at removing fingerprints though.

I’d also like to know what they do

[SamG]

I had a 1930p sovereign which was covered with red spots. I just put the coin in boiling water couple of times for 5 mins each time and then just smoothly robbing the coin with a soft cloth, removed all the red spots.

[ZatStackz]

On 14/10/2019 at 11:57, Serendipity said:

How does the Numismatic Conservation Services (NCS) “conserve” gold coins with red spots?  Am I correct in thinking they remove the red spots with acetone?

NCS doesn't reveal their secrets, but its definitely not done with acetone.  I have seen something on youtube about removing red spots with a butane torch that is not hot enough to affect the gold.  I'm not willing to try that on any of my coins.  I would rather let the experts handle it.

https://www.ngccoin.com/ncs-conservation/