| Author |
 Replies: 19 / Views: 3,762 |
|
New Member
United States
16 Posts |
So I started looking at this coin in my collection in more detail today.. and you know how that goes; you spot something you start to research and you fall down the rabbit hole of coin information. Well it landed me here and I've found tons of great info on this coin. From what I'm thinking, this coin I have is a fake, but more curious about it. Whats interesting is that this coin exhibits two the exact same traits as a coin in this thread: https://goccf.com/t/98678&whichpage=1specifically: "the "X" of "REX" has an area that nearly connects to the pillar. There is a small raised area on the left leg of the "M" in the mint mark." On top of that, to the right of the portrait you will notice it is raised. And the overlap is rather odd, they are NOT 180 degrees apart. One overlap runs about 330 degrees around the coin, the other 30 or so. See in photos below. Thoughts? Thanks for any insight! Here are the pictures:      |
|
|
|
Valued Member
Spain
110 Posts |
Overlaps at 180ΒΊ. If not...?
SG and weight?
|
|
New Member
 United States
16 Posts |
Overlap is 330 and 30 degrees per the above post. The weight is 27.00 to 27.05. My scale has a resolution of .05 and it fluttered between and then settled on 27.00g
|
|
Pillar of the Community
Hong Kong
1270 Posts |
Hello wdwms, I want to share my 1802 8R with you Specification: 26.93 grams, 39.6-40.0mm S.G 10.148 (=80.5% Ag) By definition, according to swamperbob's theory, the low S.G. classifies this coin a class 2 contemporary circulating counterfeit, that is, probably a Boston type. To me, this coin is very original to me, nice toning and no too many telltale clues. See the pictures,   Very consistent edge  The first edge overlap  The "likely" second overlap is worn  For your coin, I think you should perform the S.G., see it is correct or not. The mass of susbstance (probably silver or not) at the base of the pillar on the reverse side is an alarm of a fake coin. No big deal if it is a class two counterfeit as it is still historical but of no value if the coin is a modern forgery. So make sure your coin is silver-made or not first. Good luck. |
|
New Member
United States
16 Posts |
Ok did a quick SG test just a few minutes ago. I didn't have distilled water, so not sure how much difference that makes. My scale has a resolution of .05 g and I ran the test a few times.:
Weight: 27g
Weight in water ranged from 2.6 to 2.65g, so that gives me a SG range of: 10.19 to 10.38.
Maybe I should find some distilled water..
|
|
Pillar of the Community
Hong Kong
1270 Posts |
I think SG between 10.19 to 10.38 actually indicates there is at least 80% Ag. Ring test and sliding down a super N52 neodymium magnets can also test the presence of Ag. Anyway, a nearly sufficient Ag still cannot work out it is an original or a class 2 circulating counterfeit (Boston type). I think we need the help of swamperbob or wait for his book published.
|
|
New Member
United States
16 Posts |
Well with the ring test, if I flick it into the air with my thumbnail 12-18 inches, it resonates for the entire time it is in the air.
Do we message swamperbob or does he check these threads from time to time?
|
|
New Member
United States
16 Posts |
I also put a very powerful hard drive magnet up to it, no magnetic attraction at all.
|
|
Pillar of the Community
France
1591 Posts |
wonghinghi : diagonal lines on the rim + circles on the rim which are squares (that one is more annoying, the other is still being investigated) .. :)
|
|
Pillar of the Community
Hong Kong
1270 Posts |
Quote:
diagonal lines on the rim + circles on the rim which are squares MathieuMa, do you mean these two features are two of the many characteristics (up to 20) to determine it is a Class 2 CC? |
|
Pillar of the Community
France
1591 Posts |
|
|
Pillar of the Community
Austria
566 Posts |
My opinion (without SG or XRF or Clues) :
* The first one 100% authentic and nicely preserved.
* The second one a little worn, but also 100% authentic.
Nothing Boston about these pieces!
|
|
Pillar of the Community
United States
1666 Posts |
Soft die cracks, excess blobs of material, cracked look to planchet surface... all diagnostics for "Boston" according to Swamper's meticulous research.
|
|
Pillar of the Community
Austria
566 Posts |
Quote:
die cracks, excess blobs of material, cracked look to planchet surface These are all normal features for the period of striking. We see these on Roubles, European Thalers and apparently on milled 8 Reales coins. Edited by coinworldtv
12/02/2013 5:18 pm
|
|
Pillar of the Community
United States
1666 Posts |
True, we see these things, but not consistently on specific dies. These things are usually random, but when you see the same thing for one specific type, it makes you think. :)
|
|
Pillar of the Community
France
1591 Posts |
I was wondering, do someone here has a proper Mexico edge to post, with circles which are actually circles ? :D
(I have to check my coins, but no time to go to the safe lately ...)
Edited by MathieuMa
12/03/2013 06:30 am
|
| |
Replies: 19 / Views: 3,762 |
Posted 11/28/2013 4:30 pm
