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Grading Of Coins

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Valued Member
CarlTromp's Avatar
Netherlands
309 Posts
 Posted 05/17/2005  1:18 pm Show Profile   Bookmark this topic Add CarlTromp to your friends list Get a Link to this Message Number of Subscribers
Now I think I will get some people thinking, how do you grade a coin?
When can you tell a coin is Good, verry good, fine, Verry Fine and so on?
I think it depends on the age, and the type of coin that you get, my personal opinion is that some coins, even in almost minted condition can be called just fine, because of the rough way they are made, take for example the Lebanon 1 piastre KM 11 and 12, on the other hand, a coin struck by an official mint can be as proof as it can be made, then it’s easy.

But, how do you grade a coin which is found with a metal detector?, of with diving?
Here in Europe often we see findings that have been in the ground for ages, some times in a condition that you can recognise it easy, but sometimes totally green from corrosion, and only to identify after it’s “cleaned” with sometimes rough way’s of cleaning like soda or acid.

I myself have several coins who came from sea diving expeditions, most of them from the former Netherlands indies, now a copper coin which was in the sea for some hundred years is corroded, and next to that many times not longer the weight that it should have,
the edges got thinner, and the printing/letters are faded, so we call it here between good, and fine, but…… How would YOU call it?

Maybee some stuff to think abouth issen’t it?
By ther way, excuse my “broken” English, I try it the best I can.

Greetings to all fellow collectors,

Carl Tromp
Valued Member
United States
144 Posts
 Posted 05/17/2005  2:17 pm  Show Profile   Bookmark this reply Add knowtracks to your friends list Get a Link to this Reply
Welcome to the Community Carl,

The points you brought up are good food for thought. Just some of the things that make grading so hard. I know just enough to know I don't anything, or next to it. But that doesn't stop me from trying. Different countries, centuries, metal content & minting process all need to be understood. I don't think it can be accomplished in one life time without building on someone else's work.
But that is just my opinion.

Welcome, Dave
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Susanlynn9's Avatar
United States
5877 Posts
 Posted 05/17/2005  2:40 pm  Show Profile   Bookmark this reply Add Susanlynn9 to your friends list Get a Link to this Reply
There are a number of different guides that help with this, but there are definite variations that can make this difficult.

Morgan dollars, for example, have different criteria for the different mints. Since by the 70-point system, uncirculated is shown in MS (Mint State) grades this makes sense. Most of the coins that came out of the San Francisco mint (though not all) have sharp strikes. Most of the coins that came out of the New Orleans mint have softer strikes. Therefore, an MS65 San Francisco could look entirely different from an MS65 New Orleans coin.

There are many series with these types of differences. It can also vary by date and die marriage. There is a Bust half variety with some unstruck letters that came that way from the mint.

Lots and lots of factors to consider!
Rest in Peace
Mike's Avatar
United States
2884 Posts
 Posted 05/18/2005  12:07 am  Show Profile   Bookmark this reply Add Mike to your friends list Get a Link to this Reply
Hello CarlTromp and welcome to the forum! In America coins may be designated as "Conserved", "Salt Water Effect" "Ship Wreck Effect" "Corroded" along with all the "Point"(1-70) and adjectival gradings(AG,G,VG,F,VF, EF or XF,AU,BU) as well. Some specifically mention that they were excavated and "conserved" or "cleaned".Cleaning itself can go from mild to harsh. Different levels of porisity or granularity are often mentioned as well as \"burnishing" and "whizzing". These are some of the many ways of describing a coins state of preservation. I hope this helps.By the way you are very easy to understand! Mike
Edited by Mike
05/18/2005 12:08 am
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