I. R. Bama's Blog

02 Jun 2021

A Visual Search Engine For Coins: Coinoscope

| I. R. Bama

You all have probably heard of this app for your phone, Coinoscope. It is a visual search engine that will identify your coins, even in advanced states of wear, but not quite in all cases. I have found it to be extremely helpful for those coins originating from the Middle East and Asia. I have a working knowledge of enough European coins, but even in those cases Coinoscope has something to offer you. It will tell you roughly how much the coin is worth by grade, which is another real good reason to learn to grade your own coins.Coinoscope did not identify my older Buffalo nickels in a test so well. But it has always been accurate with foreign coins. It is a free app, but you can purchase a "pro version" that has extra features. I highly recommend this app to you all!

27 May 2021

Some Recent Acquisitions

| I. R. Bama

Hello everyone, yes, it's your old lost friend, Lazarus, back from, well, it only seems like hell. But I digress.....

06 Mar 2021

The 100 point grading scale: Further Considerations in Development

National Coin Week | I. R. Bama

On first look, the 100 point scale obviously looks like a huge improvement over the Sheldon scale. But what are looks? Sometimes cosmetics do not reveal the true worth of a model or a scale to use for evaluation. (I'm glad I can put the research classes from college to use, even if it isn't for a psychology investigation!). We need to investigate!

28 Feb 2021

The 100 Point Coin Grading Scale: Its the Mathmatical Underpinnings that Make It Great!

| I. R. Bama

Many of you read with interest and have encouraged me to pursue a CGS system that is mathematically sound. So what makes a model or grading system useful? Well, it has to have internal validity. What is that, you may ask? Its a fancy way of saying that it accurately measures what it purports to measure in a manner stable over time and multiple observations. So you get the same results over time, every time. the other construct to be considered is observational reliability. That means that you could in this case, show a coin to any grader and you will have almost perfect agreement in giving the coin a grade.

21 Feb 2021

The British Coin Grading System: Amazing!They Have a Different Numeric Score For Every Grade!

| I. R. Bama

Welcome to another foray into the more scientific aspects of Numismatics, if you will. Today, let us turn our attention to a grading system used widely across the world that is not the Sheldon Scale. I submit for your examination the British Grading System. A grading system is only as utilitarian as it describes as accurately as possible the present state of a coin based on the degree of agreement between observers and the stability of getting the same results over randomly chosen time periods.

07 Feb 2021

The No Cents Liberty Nickel 1883

| I. R. Bama

Some of you are aware that I bought 26.5 lbs of foreign coins in an auction in December. Its really hard to get your mind around that many coins and it was pretty heavy but manageable. On Friday Patty and I started sorting them into Western Hemisphere, Europe and 3rd world categories. I had to have a way to make sense of them instead of looking at dissimilar coins from everywhere. When I'm done with this I can sort them by country. And thee are a few countries that I did not have in my large foreign collection.

31 Jan 2021

John Hull and His Hull Mint

Coins-United States Colonial | I. R. Bama

After writing about James Longacre, I kind of wondered why I started with the third chief engraver and that led me to look at earlier engravers and mint principles. Then I wondered about who was the Hull in the Hull mint, as it was the first mint in our colonial national history. I was surprised to find that information on this subject is not especially easy to obtain without access to an academic library. And access to an academic library is forbidden to the public during this peculiar time. So left to the Hoi Polloi at this time are the few sources that that can be gleaned from the internet. This is one I would like to delve in even deeper.

24 Jan 2021

Swiss 20 Franc Vreneli Gold Coin

| I. R. Bama

Like its contemporary, the French Gold Rooster 20 Franc coin was another issue from Switzerland that was standard in gold content along with the Austrian 20 Franc/ 4 Florin of Austria, the 20 Drachma coin of Greece, the 20 Albert Belgian coin, the 20 Peseta coin of Span and the 20 Lire of Italy. The standardization for trade came from these member nations of the Latin Monetary Union, the historical antecedent to the European Union monetary system. These coins were all standard in relation to each other in order to facilitate trade between the countries.

10 Jan 2021

French 20 Franc Gold Coin

| I. R. Bama

The French 20 Franc Rooster coin, designed by, Jule-Clement Chaplin, is a very popular series to collect. All of these coins were minted in Paris. It contains 0.1867 oz of 0.900 fine gold. It is 21 mm in diameter and 1.3 mm in thickness. It weighs 5.8 grams.

09 Jan 2021

James B. Longacre, 4th Chief Engraver of the U.S. Mint

| I. R. Bama

Born on a hot August night, it was the 11th of 1794 in Delaware county Pennsylvania to Sarah and Peter Longacre. James Longacre went on to become an important historical figure of great stature. He was responsible for bringing to fruition many beloved coin designs that we treasure today.


Money.org Blog and Forum Terms & Conditions of Use / Disclaimer

This is a community-sourced blog. Any views or opinions represented in this blog are personal and belong solely to the blog post’s author, and do not represent the views or opinions of the American Numismatic Association, and may not represent the views or opinions of people, institutions or organizations that the author may or may not be associated with in professional or personal capacity.

All content provided on this blog is for informational purposes only. The American Numismatic Association (ANA) makes no representations as to the accuracy or completeness of any information on this site or found by following any link on this site. The ANA does not monitor the blog on a constant basis.

The ANA will not be liable for any errors or omissions in this information, nor for the availability of this information. The ANA will not be liable for any losses, injuries, or damages from the display or use of this information.

Downloadable Files and Images

Any downloadable file, including but not limited to pdfs, docs, jpegs, pngs, is provided at the user’s own risk. The ANA will not be liable for any losses, injuries, or damages resulting from a corrupted or damaged file.

Blog/Forum Posts and Comments

In these terms and conditions, “user content” means material including without limitation text, images, audio material, video material, and audio-visual material that you submit to this website, for whatever purpose.

Blog/forum posts and comments are encouraged. However, the ANA reserves the right to edit or delete any blog/forum posts or comments without notice. User content deemed to fall under the following categories will be removed and may prompt disciplinary actions, including, but not limited to, review and suspension/revocation of blog and forum privileges:

  • User content deemed to be spam or questionable spam.
  • User content intended for commercial purposes or to buy, sell or trade items.
  • User content containing profanity.
  • User content containing language or concepts that could be deemed offensive.
  • User content containing hate speech, credible threats, or direct attacks on an individual or group.

In addition, user content shall not be illegal or unlawful, shall not infringe any third party’s legal rights, and shall not be capable of giving rise to legal action whether against you, the ANA, or a third party under any applicable law.

The ANA may terminate your access to all or any part of the website at any time, with or without cause, with or without notice, effective immediately. If you wish to terminate this Agreement or your Money.org account (if you have one), you may simply discontinue using the website. All provisions of this Agreement which by their nature should survive termination shall survive termination, including, without limitation, ownership provisions, warranty disclaimers, indemnity and limitations of liability.

The ANA reserves the right to display advertisements on your account and blog pages.

This blog’s terms & conditions of use / disclaimer is subject to change at anytime.

We use cookies to provide users the best experience on our website. If you continue without changing your cookie settings, we'll assume that you agree to receive all cookies on money.org. You may disable cookies at any time using your internet browser configuration. By continuing to use this website, you agree to our privacy policy and terms of use. To learn more about how we use cookies and to review our privacy policy, click here.