8 Reales Edge Question - Page 4 - Coin Community Forum

To participate in the forum you must log in or register.

Author	Replies: 51 / Views: 15,777	Page: of 4

Squire Wilson Pillar of the Community Australia 653 Posts	Posted 02/06/2018 11:51 pm I was intrigued about the difference between the XRF scans from the Coin Dealer and the Bullion Dealer, results shown in my previous post. Therefore I decided one more XRF scan from a Jeweller. This result is 92.5% Ag and 7.69% Cu. No other trace metals registered on the XRF scanner. The way I interpret this is that the Bullion Dealer had the best XRF scanner as this showed up the widest range of trace metals. The Coin Dealer showed Iridium and I think that this is derived from the primary beam sources, as per the explanation given by SPP-Ottawa. The Jeweller's XRF machine is simply not sensitive enough to pick the trace metals. Comments from Coin Community Forum members would be very welcome. On another point, is there a reference about the Chinese Chop Marks on the coin? This would futher assist in assigning a history to this coin. I have a Chinese colleague at work and I will show her enlargements of the Chop Marks on my coin soon. She may be able to help me interpret these. I will certainly let CCF members know of my findings. Squire Report this Post to the Staff
colonialjohn Pillar of the Community United States 1757 Posts	Posted 02/07/2018 08:45 am Hand held XRF's vary but some have instrument detection limits (IDL's) only to 0.1% so accuracy is normally "A POWER OF TEN" upward from this IDL or 0.1% X 10 = 1% to be clear here. That much iridium was clearly an error in the detector for whatever reason. In terms of Chinese chop marks I doubt they will show origin to a specific area in China ... most are translated into common every day sayings but not talking here about the authenticity of chop marks. You saw how well made this piece was and the level of silver so it was authenticated in Canton or wherever many times. That is why GNL Type 2's are so tough ... the Ag reading can at times be near 90% or even 85% with a little more lead and so many are slabbed. Without XRF and IMO the edge and the denticles around the edge are valuable tools as described in GNL to determine whether regal or Class 2. The only problem is if in a slab its difficult to check 180* overlaps. In the end and sad to say - what you don't know ... can't hurt you as a GNL Class 2 in a TPG. Report this Post to the Staff
Squire Wilson Pillar of the Community Australia 653 Posts	Posted 02/10/2018 7:49 pm Thank you for the information colonialjohn Squire Edited by Squire Wilson 02/10/2018 7:49 pm Report this Post to the Staff
Squire Wilson Pillar of the Community Australia 653 Posts	Posted 02/14/2018 12:40 am During my recent web browsing I found an interesting article regarding British (Birmingham) restrikes of the Spanish 8 Reale piece as posted by the San Jose Coin Club on page 3 at http://www.sanjosecoinclub.org/NL/2...News%201.pdf I hope this is of interest to CCF members Squire Report this Post to the Staff
swamperbob Pillar of the Community United States 5362 Posts	Posted 02/14/2018 01:28 am Squire Wilson Very interesting article. Must have been written by a genius. Actually that is a copy of one of my first articles on counterfeit coins written for this forum. Can't remember how far back it goes but probably it was written in 2005 or 2006 a couple years before I started writing my book. I re-read it and the only "fact" that I now consider to be incorrect is the list of Birmingham related counterfeits found in Coronado's book. I include a refutation of the list and classifications provided in Coronado's book in the Notes and Comments section of Appendix 2 of my book "Counterfeit Portrait Eight-Reales, The Un-real Reales." The Coronado book gives no citation for any list of Birmingham coins by date but several that were actually illustrated are simply incorrect for the category of coin types. In general Coronado's book is not worth buying. The rest of the article is still a good general summary. Report this Post to the Staff
Squire Wilson Pillar of the Community Australia 653 Posts	Posted 05/19/2018 04:14 am i have been fortunate to meet up with a colleague at work who's grandfather is from southern China. I showed my 8 Reale coin posted in this topic with the Chinese chop marks on it. The elderly gentleman deciphered some of these for me. I have attached the scroff marks and their translations below. It would be interesting to know if research has been conducted into linking these marks to particular establishments or even particular families or individuals that lived and worked in this region during this time. That would add fascinating insight into the "life story" of this classic coin. Squire Edited by Squire Wilson 05/19/2018 04:15 am Report this Post to the Staff
	Replies: 51 / Views: 15,777	Page: of 4

First Page

Previous Page Last 15 Replies

To participate in the forum you must log in or register.

All Forums Category: World Coins and Currency Forums Forum: World Coins and Commemoratives

Silver Gold Bull US is the United States leading bullion dealer. We deliver gold coins, gold bars, silver coins, silver bars and precious metals to your door. Order today!

The First Dollar, your premier source for bullion and rare coins. See our bullion list on the site and the coin inventory on ebay.

View Last 100 New Topics

View Last 100 Active Topics

Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited.
Contact Us | Advertise Here | Privacy Policy / Terms of Use

Coin Community Forum

It took 0.23 seconds to rattle this change.