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 Replies: 28 / Views: 1,141 |
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New Member
United States
3 Posts |
This is a gold 1999 D Connecticut State Quarter it doesn't appear to be worn very much it does not have a copper line on the Edge and it doesn't have any color discoloration in the weight of the coin is 5.9 Grams   |
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Pillar of the Community
United States
1447 Posts |
There are four known types of experimental compositions which have been discovered so far on 1999 State Quarters. Please add a photo of the edge, and the size compared to another 1999. Type #1 - This type has the "color" of a Sacagawea dollar and has the copper center core. Type #2 - This type has the "color" of the Sacagawea dollar but does not have the copper center core. Type #3 - This type has a slight "green" color and has the copper center core. Type #4 - This type has a slight "green" color but does not have the copper center core. WEIGHT - The weight on ALL of these discovered so far is OVERWEIGHT - varying from 5.9 grams to 6.3 grams. (another said 6.61g) SIZE - It is slightly THICKER than a regular State Quarter, due to the heavier planchet. COLOR - So far, the pieces discovered are either the same "color" of the Sacagawea dollar, or have a slight "green hue" to them. LOOK - The edge is slightly rough and may have a higher rim around part of the edge. EDGE - Some of these do NOT have the center COPPER CORE. STRIKE - None discovered so far are proof-like in the fields. REEDING - Some of these have incomplete reeding. If it passes the tests vs being plated which also happened during that time then testing the alloy and getting certified would be next. The predominant metal is copper, followed by zinc. There are also small percentages of manganese and nickel. 1- https://mikebyers.com/exp25cset.html2- https://www.error-ref.com/sate_quar...ental_alloy/Edited by datadragon
06/04/2023 12:26 pm
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Pillar of the Community
United States
2909 Posts |
Much more likely to just be a gold plated quarter. They were sold in massive amounts in every magazine and on every home shopping channel.
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Moderator
 United States
51596 Posts |
 Could use better photos,but I am thinking it was gold plated after it left the U.S. mint or just toned a golden hue. John1 
( I'm no pro, it's just my humble opinion )
Searched 6.5 +/- Million Cents Since 1971
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Bedrock of the Community
United States
11024 Posts |
to the CCF
Take a look at my other hobby ... http://www.jk-dk.artToo many hobbies .... too much work .... not enough time. |
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Bedrock of the Community
United States
81242 Posts |
Most likely plated, agree. to the CCF! |
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Pillar of the Community
United States
1986 Posts |
I agree with it being plated. Has no extra value now, but cool find anyway and it is a good example to show.
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Bedrock of the Community
United States
22229 Posts |
Nice information David! never knew there were 4 types here.  we need much better images and one showing the edge. Also include a size comparison with a 'normal' quarter too please. |
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Pillar of the Community
United States
4393 Posts |
I'm with Dearborn (especially after looking over Datadragons info).
I didn't realize there were composition anomalies for the year.
Another possible test might be an XRF scan to determine the metallic content of the quarter. (I have a pawn shop do my questionable coins or metal detecting finds.)
Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
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New Member
Topic StarterUnited States
3 Posts |
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Moderator
United States
45915 Posts |
A gold plated clad quarter would have gold edges.
Show your support of the Coin Community Family (click here)See what CCF members have for sale (click here)See my collecting interest - (click here) |
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Bedrock of the Community
United States
22229 Posts |
I agree that chances are that this is a simple plated coin, but David did bring in a tiny bit of doubt.
an easy test would be to give this coin a VERY TINY scratch in between one of the reeds to see if there is a copper nickel clad over a copper core.
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Pillar of the Community
United States
1447 Posts |
The experimental planchets are rare so yes we wouldnt see one posted much at all if ever. Gold plated sets are made and sold by the thousands or tens of thousands so yes of course typically the default is that unless it checks out. All discovered experimental ones so far have been 5.9g or above in weight but in this case since it was within that range I couldnt eliminate it by that nor having the same size it looks like as usual. The photos were not optimal since the color appears more gold like which is more in line with plated quarters while the manganese brass is more yellow, looks more like the Sacagawea dollar coins the mint strikes as compared below. They also can have a slight "green hue" to them. So far I'm going with plated. If you really want to be sure, take it to a coin shop or pawn shop that has a handheld XRF gun since a coin that is a real experimental one is worth potentially $10k+. It can be sent in for grading/authentication or can try what Dearborn already mentioned but that may risk damage to coin if it turned out unlikely to be an experimental one. You can also contact mike byers for his opinion since it has a potential weight within the known range and apparently size appears thicker. Manganese alloy planchets for the newfangled "golden" dollar apparently arrived at the Philadelphia Mint before their intended target, the Sacagawea dollar dies. Mint workers instead tested the planchets using Statehood Quarter dies. Only a handful of examples are known for each of the five statehood types.   Edited by datadragon
06/04/2023 5:48 pm
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Pillar of the Community
United States
4291 Posts |
to the CCF and Need more info. I didn't realize there were that many off metals, I'm hoping for a good outcome.
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Bedrock of the Community
United States
22229 Posts |
Quote:
I'm hoping for a good outcome. Yep! me too.. 
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Pillar of the Community
United States
5501 Posts |
From Mike Byers special volume 2...  |
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Replies: 28 / Views: 1,141 |
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Posted 06/04/2023 12:36 am
