| Author |
 Replies: 18 / Views: 2,449 |
Page 2 of 2
|
|
|
|
Bedrock of the Community
United States
94367 Posts |
I'll say MS-65BN, just a stab.  to the CCF! |
|
Bedrock of the Community
 United States
18687 Posts |
lots of little nicks on the reverse letters. heavy toning makes it difficult to see whats under. MS64BN it might get a bump for toning
|
|
Valued Member
 United States
127 Posts |
KYKopperKoins Any idea what mikesmountainvalues (there's another dealer on ebay that does the same with silver coins) treats their copper coins with to get the luster to "pop" with the light source? I assume they are using a combo of chemical treatment and light source type. The reflection of the light source on the slab suggests a high-intensity tensor light. The color is one issue, but to me the altered luster is a bigger one. And as KYKopperKoins states, it is NGC that routinely certifies these coins that have both the color and luster modification. Whereas with PCGS I've seen them only do it with nice RD or RB coins with the altered luster; PCGS will accept the modified luster. Edited by TheColorofMoney
08/11/2022 09:35 am
|
|
Pillar of the Community
United States
797 Posts |
|
|
Bedrock of the Community
United States
19964 Posts |
|
|
Bedrock of the Community
United States
36839 Posts |
|
|
Pillar of the Community
United States
1361 Posts |
Not sure on the chemical, former grader at ngc said it isn't ms70, and said they know he treats them, but they call it market acceptable. From what I'm told, whatever he uses, the color stays stable.
|
|
Pillar of the Community
United States
3207 Posts |
MS64 but the color does not appeal to me
|
|
Valued Member
United States
127 Posts |
KYCopperCoins Could be a very dilute solution of DMSO (dimethyl sulfoxide) along with a skillfully controlled "dwell" time (time that the coin and solvent are in contact). http://chemed.chem.purdue.edu/demos...ts/12.9.htmlI remember these "market acceptable" treated copper coins appearing at shows in 1988 or 1989. I will try to find out more. |
|
Pillar of the Community
United States
713 Posts |
"NGC grades these, PCGS does not," What does this even mean? |
|
Valued Member
United States
88 Posts |
" NGC grades these, PCGS does not,"
If I'm reading it correctly I think he means that NGC knows these are chemically treated but still gives them a straight grade while PCGS will only give a details grade
|
|
Valued Member
United States
127 Posts |
Hello All, It has been 2 days, 4 hours, 48 minutes and 36 seconds since I posted this coin. Now is the time for the reveal. NGC MS 65 BN This coin has likely been dipped in MS-70 (2-butoxyethanol & potassium hydroxide mixture) or treated in some other way. The coin is for sale on ebay https://www.ebay.com/itm/195070270366 by some, as Walter Breen would call them, "mental defective." The seller wants $21,999 for it (along with a "twin" coin that is fully green in color, likewise treated - probably MS-70, also residing in an NGC holder with a $21,999 pricetag). NOTE: I encourage people to spend time on ebay checking out the coins for sale there because it is quite the learning experience.  Edited by TheColorofMoney
08/12/2022 4:06 pm
|
|
Bedrock of the Community
United States
19964 Posts |
What a deal at $21k! LOLOLOL
|
|
Valued Member
United States
127 Posts |
KYKopperKoins
Jerry Bobbe (copper coin specialist, restorer, ex-PCGS grader) stated that he thinks that (MikesMoutainValues and the 1909 VDB Lincoln that started this thread) are treating with MS-70.
I shall endeavor to find out more - as in what chemicals other than MS-70 might be used.
Edited by TheColorofMoney
08/13/2022 12:47 pm
|
|
Bedrock of the Community
United States
19964 Posts |
Quote:
I shall endeavor to find out more - as in what chemicals other than MS-70 might be used. Over the years we've had a lot of threads on coin forums about MS-70 and copper. Many of us experimented - personally, I never had any luck toning test coins with it. However, a guy on CT forums (L.Keigwin) recreated this color on a few different coins to prove what it does to Lincolns. https://www.cointalk.com/threads/ex...post-1598236https://www.cointalk.com/threads/ms...coln.195473/I've seen many suspect blue coins at shows over the years, I stay away from that look - don't trust it. What I would consider market acceptable blue doesn't look like this coin. The MA version of blue or even green typically has some mint red and other colors mixed in. Edited by BadThad
08/14/2022 5:25 pm
|
|
Page 2 of 2
|
Replies: 18 / Views: 2,449 |
Page 2 of 2
|
First Page
Posted 08/11/2022 08:39 am
