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 Replies: 19 / Views: 1,770 |
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Pillar of the Community
 United States
1551 Posts |
I haven't posted anything for a while so I thought I would share our last NGC Submission. We pre: sent 4 pieces in as a test and we received 2 back graded UNC and 2 back graded AU. So, we just sent in 316 others with the vast majority looking like they will grade UNC.   |
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Bedrock of the Community
 United States
94367 Posts |
You sent 316 coins for grading?  |
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Pillar of the Community
 United States
1551 Posts |
Yes, I did!  216 of them are in grading/encapsulation and the other 100 are in the pipeline. I think we will end up with about 80% mint state grades and 20% AU grades. All 316 have full dates and mint marks with 5 of them being mint mark over different mint mark types. |
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Pillar of the Community
United States
1551 Posts |
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Pillar of the Community
United States
6896 Posts |
Striking! (no pun intended).
I'm not at all on top of this part of numismatics ... was this a published hoard?
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Pillar of the Community
Russian Federation
1519 Posts |
Great. I will be waiting for an update.
But as NGC evaluates such coins, it does not look like the usual round metal money. These Spanish 8 reals are not round at all. How do they know the year and the mint?
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Pillar of the Community
United States
3188 Posts |
That's a lot of cobs. They look cleaned, which is probably why they note "excavation". They don't look corroded like seawater cobs.
The date is very clear on the 1739, and shows as "739".
"Two minutes ago I would have sold my chances for a tired dime." Fred Astaire
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Moderator
United States
157701 Posts |
Very interesting!   |
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Moderator
United States
32709 Posts |
Quote:
That's a lot of cobs. That is an understatement! I'm not sure that I've seen so many in one spot outside of a museum.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Pillar of the Community
United States
3188 Posts |
Harlan Berk had a little boxful of 4R's at one time, but it was only 2-3 dozen.
"Two minutes ago I would have sold my chances for a tired dime." Fred Astaire
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Pillar of the Community
United States
1788 Posts |
Are they all from Potosi and are they all from a single hoard that someone uncovered?
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Pillar of the Community
United States
675 Posts |
I want one !!, or two. Buy or trade. Got an AU Mexico CJ 4R M-P burnin a hole in my pocket. What's with Bolivia, didn't the UNC.1754 8Rs come from there?
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Pillar of the Community
United States
1932 Posts |
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Pillar of the Community
United States
1551 Posts |
This group is part of the Sinclair hoard, and they have been stabilized after being in saltwater. The XRF scans show 96.2 to 96.4% silver from the original 90% when they were hammered. Saltwater leaches or corrodes the copper out of silver, and based on the percentages it puts them at about 260 to 240 years or so in saltwater.
As far as corrosion you have to keep in mind how deep the pieces were and how deep they were in the sand and other stuff on the ocean floor. The deeper coins are in the muck the less damage they take.
We own them all and the 1st group should ship out tomorrow. The date ranges are 1737 to 1753 with every mint and even a few errors. Grade range looks like about 70% or so will be UNC's. So, this group looks to be one of the finest groups recovered.
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Pillar of the Community
United States
1932 Posts |
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Pillar of the Community
United States
1551 Posts |
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Replies: 19 / Views: 1,770 |
Posted 10/08/2023 1:38 pm
