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 Replies: 13 / Views: 4,567 |
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New Member
Spain
13 Posts |
Hi I am relatively new to the world of numismatics as previously I have collected coins mainly for the precious metal content value. I have recently acquired a 1756 8 reales Pillar dollar from the Mexico mint with the initials MM. It measures 40mm and has a weight of 26.86g. Although I bought it from a reputable seller as authentic I am not 100% convinced that it is so I would really appreciate your expert opinions. Many thanks in advance.     Edited by Jake68
03/04/2015 10:33 am
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Pillar of the Community
United States
1156 Posts |
I am suspicious of your 1756. The design details look too thick. It's especially noticeable with the lettering. Here's my 1759 for comparison.   |
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Pillar of the Community
United States
1156 Posts |
Another comparison, an NGC certified 1757 on eBay. |
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Pillar of the Community
Hong Kong
1270 Posts |
Still ok to me but the coin looks polished heavily or it is the problem of photography, it seems to lose any original luster. Larger edge pictures are better for comparison. I show you my coin though it is not of same mint signature. 27.02 grams, 39.8mm   |
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Pillar of the Community
United States
1156 Posts |
Well at least I can't spot any dimples that look like casting bubbles on your 1753. I do see them on both sides of the 1756.  |
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New Member
 Spain
13 Posts |
Thanks for your comments @jgenn
I did have similar concerns with the letters.In particular I notice the position of the serifs on the letter A in HISPAN in relation to the small dots of the crown. These are clearly different between your coin and mine.
I have checked other 1756 photos on some auction houses lists in Spain however and they appear the same as mine.
Thanks also @wonghingi
You are right the coin has definitely been cleaned which is a shame although my main concern is its authenticity.
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New Member
Spain
13 Posts |
 Hopefully this edge photo is clearer. |
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New Member
Spain
13 Posts |
I would really appreciate some more opinions on this coin.
Thanks in advance!
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Pillar of the Community
Hong Kong
1270 Posts |
The edge does not look like those modern forgeries. I have more confidence it is real.
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New Member
Spain
13 Posts |
Thanks @wonghinghi I have carried out some specific gravity tests (using tap water as I don't have any distilled handy but using other coins as controls) and the results were very close to a Peace dollar, 5 pesetas(90%)and another 1736 Pillar dollar so I am a lot more confident that it is genuine. Your comments are much appreciated. |
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Pillar of the Community
Hong Kong
1270 Posts |
No thanks, I am still waiting for swamperbob's comments on this coin.
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New Member
Spain
13 Posts |
Me too!Hopefully this thread will catch his attention soon.
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Pillar of the Community
United States
5362 Posts |
The coin does look cleaned. That makes authentication a bit more difficult particularly if it was aggressive and rounded over details like lettering. That will at times make the letters look thicker than they should be.
I am suspicious of the coin because I own a 1756 that tests as 63% silver which was made within the last 20-30 years. That one is a numismatic forgery. It is pristine "as cast" condition so if it was polished it would be harder to identify.
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New Member
Spain
13 Posts |
Thanks swamperbob. It has definitely been cleaned and the lettering/detail does appear somewhat rounded and perhaps thicker than other examples. However the weight is in the right region and it compares well with a Morgan dollar control in my 'amateurish' specific gravity test. |
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Replies: 13 / Views: 4,567 |
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Posted 03/04/2015 9:48 pm
