Log in or Sign up. Coin Talk. Does anyone know what the deal is with an off-color penny and if it's worth anything? See picture, penny on the right I've found a few others like it online but never got a real answer as to what it is.
It is very new looking for a penny and is a strange yellowish color. PTFsemperfiAug 9, Log in or Sign up to hide this ad. Welcome to CoinTalk! Your cent looks plated to me. More pictures might help. Do you have a scale to check the weight? Idries PappasAug 9, It just looks newer and shinier to me. ClawcoinsAug 9, Better pics would help.
What is the weight of the coin? SilverDollarAug 9, It was plated. OldhoopsterAug 9, Here are a couple more pictures with another penny for reference. It's definitely a different color, not just newer and shinier.
I wish I had a scales that would pick up something that tiny, but I don't.
1996 US Mint Commemorative Coins
I'm not a coin collector, this one just jumped out at me because it was so different from the others and it piqued my curiosity. JPG File size: 1. JPG File size: This may help Watch as the heat diffuses the zinc with the copper to form a brass alloy.Log in or Sign up. Coin Talk. Why is this D penny a gold color? I found this D penny a while back, and I grabbed it because it's this gold color, though I'm not sure why.
A quick search tells me it's because the penny's zinc coating got heated, and mixed with the copper of the penny creating "yellow brass," though I'm curious if this is the case or not. TinkerTankerDec 2, Log in or Sign up to hide this ad. KentuckyDec 2, Amos likes this.
It is a zinc cent clad in copper. Anything number of things could explain why the tone is irregular.
Its not worth more then a cent.
AmosDec 2, Kentucky likes this. Kentucky did the rotations this time Either it's "natural" toning. Or, I think the coin was gold plated at one point and some has worn off. Can't tell from the photos. Michael KDec 2, KentuckyDec 4, TinkerTanker you have the facts inverted the core is zinc and the plating is copper.
But otherwise heating the coin hot enough to form a brass alloy it's theoretically possible. Just has to get a lot hotter than you think. Another possibility is zinc poisoning of the plating bath. The ion exchange that creates the copper plating can also leave some zinc ions in the copper solution.
If it's not changed out soon enough then the plating becomes brass instead of pure copper. The third possibility is a science experiment where somebody plated the coin, possibly with a few atoms thick of gold and stopped before it really got a bright gold color.
Am XRF gun would give you data, but it would only give you information to satisfy the intellectual curiosity. GSDykes likes this. Show Ignored Content. Draft saved Draft deleted.
Share This Page Tweet. Your name or email address: Do you already have an account? No, create an account now. Yes, my password is: Forgot your password?E-mail Error message here! Password Hide Error message here! Remember me. Lost your password? Please enter your email address. You will receive a link to create a new password. All that means is that the value of the coin will change based on the current trading value of gold.
This coin weighs a tenth of an ounce. So you can divide the current price of gold by ten to get the precious metal value of this coin. The United States Mint sells these coins every year. The only change is just the year; the style of the coin stays the same. The back or reverse of the coin pictures a family of eagles. The front or obverse of the coin has Lady Liberty holding a branch and torch. Mint in A proof coin will have a small W under the year. Otherwise the two types of coins look the same.
Contact us to get an exact offer on your coin or entire collection. Remember Me. Remember me Forgot your password? Enter Password Confirm Password. This field is for validation purposes and should be left unchanged. Back to log-in. Can't Email or Call Right Now?Call us at or email us at buybacks silver. The rat is the first animal in the year cycle of the Chinese Lunar Calendar. The Lunar Series I collection from the Perth Mint primarily focused on 1 oz silver and 1 oz gold bullion coins.
Later collections from the mint would expand to include a variety of bullion and proof weights, but when the series first started the focus was on the most popular weights among investors. Coins in this condition are known as near-perfect specimens with full, original mint luster and no more than two minor detracting flaws.
Acceptable flaws at this level include only minuscule contact marks or hairlines. This listing has the possibility for random label options. We only guarantee the coins have an MS69 grade.
It will come from one or the other. If you purchase multiples, please keep in mind that the same principle applies. This is the fourth-generation effigy on Australian coins and was designed for the Royal Mint of England in by Raphael Maklouf. The reverse of Gold Australian Lunar Rat Coins features the image of a rat in right-profile relief as it stands on a small patch of grass. Both sides of the coin have a beaded border design and the reverse includes the Chinese symbol for the rat.
Please contact Silver. You can reach us atchat with us live online, or email us directly. Please provide some details about your product experience:. Save my name, email, and website in this browser for the next time I comment. Images shown are examples only. Actual item appearance is subject to change, but will always correlate with title and description. Product Details Specifications Reviews.
First issue of the Lunar Series I collection! Availability of certified coins is limited! Consists of One Troy ounce of. On the obverse is Queen Elizabeth II.
The reverse features a rat in a small grass patch. Please keep in mind you could receive multiples coins from the same grading house if you purchase more than one. Additional information Weight 1. There is currently no reviews for this product. Brand: Perth Mint. Frequently Asked Questions How much does shipping cost? About Us About Silver.How much is my coin worth?1996 LINCOLN PENNY COINS WORTH MONEY!! ERROR PENNIES TO LOOK FOR IN CHAGE
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Currency Pricing Guide How much is my coin worth? Find By Status. Huge Discounts. Denomination Note: The listed prices are indications of the coin marketplace only, and are not offers to buy or sell. Prices will fluctuate due to many factors, and an individual set may trade for more or less than the range given. Rare date: W Proof. Rare dates: S, S V.
What is a Gold Penny?
Many different types, both gold and silver. Rare dates:, ; Scarce dates:, Proof Sets Note: The listed prices are indications of the coin marketplace only, and are not offers to buy or sell. Mint Sets Note: The listed prices are indications of the coin marketplace only, and are not offers to buy or sell. All Internet Auctions. Subscribe to Free Announcements:.
E-mail Sam Foose or call x Learn about consigning with us. Video tutorial Getting the most out of search. Hall of fame. Indian Quarter Eagles Scarce dates: D. Four Dollar Gold Pieces All are rare. Indian Half Eagles Rare dates: O, Generally worth their bullion value.Generally, when people talk about a gold pennythey are talking about a normal penny that has been treated to give it a gold color. In some cases, however, a penny may actually have been plated with gold.
And in some even rarer cases, a penny may have been struck accidentally on a blank of the wrong metal. The gold penny is also the name given to an ancient British coin, worth twenty pence. Creating a gold penny is a common science experiment, especially at the primary and secondary school levels. Many teachers use it to discuss the ancient study of alchemy, and how that relates to modern chemistry. It also demonstrates some basic concepts of chemistry, while providing a concrete result that students can take home, and which can be quite exciting to younger students.
You will also want to wear proper safety equipment, including goggles and gloves, and have a pair of tongs to handle the penny. The zinc and sodium hydroxide mixture should be placed in a vessel and put on top of the Bunsen burner. It should remain on the heat until it begins to boil, at which point the normal copper penny can be dropped into the mixture. It should stay in the mixture for two to three minutes, and then should be removed with tongs, and allowed to dry on a paper towel.
The color at this point should be roughly silver, as the zinc has formed a thin layer on the outside of the copper. Next, the silver penny should be held with tongs over the direct heat of the Bunsen burner until the color changes. Once the silver penny begins to transform into a gold penny, it should be removed from the heat and placed on a non-flammable surface to cool. The penny will now appear to be gold, though in fact all that has happened is that the heat has caused the zinc to mix with the copper.
This essentially forms the metal known as brasswhich is commonly mistaken for gold, although it is much less yellow and has an entirely different consistency. So the penny most people create can more accurately be described as a brass penny. Before his reign, most high value coins used in England were from either the Byzantine Empire or from Arabia, but during his reign, inhe saw the need to have a local currency which could handle larger transactions.
So he had a gold penny created, which on one side featured him on a throne, and on the other side featured a cross and flowers. King Henry III unfortunately set the value of this penny too low, relative to the actual price of gold, and so most of the coins were melted down to be sold as pure gold, making an actual gold penny from this era quite a rarity. Please enter the following code:. Login: Forgot password?View Reunion SlideshowThe School of Statistics recently celebrated its 40th anniversary at the University of Minnesota on May 13 and 14, 2011, with a reunion for all bachelor, master, and doctoral alumni.
View the invitation (PDF), the list of attendees (PDF), Sandy Weisberg's presentation (PDF), or a slideshow from the reunion. Statisticians collect, organize, analyze, interpret, and present data. We are constantly seeking better ways to do that in more and more challenging situations, using mathematics, computing, and insight.
People use statistics in business, industry, medicine, government, and scientific research. The School of Statistics is a leading center of statistical practice, education, and research.
Value of 1996 $5 American Gold Eagle Coin
The School has about 15 faculty members and 65 graduate students. We offer programs leading to BA, BS, MS, and PhD degrees. We are the proud hosts to the Buehler-Martin and Geisser Lectureship. Santos-Lozada and Jeffrey T. The authors used monthly death records from the Puerto Rico Vital Statistics system from 2010 to 2016.
One was a nice post discussing the challenges for AI in medicine by Luke Oakden-Rayder and the other was about the need for increased focus on basic research in AI motivated by AlphaGo by Tim Harford. Despite the excitement around AI and the exciting results we see from sophisticated research teams almost daily - the actual extent and application of AI is much smaller.
I was listening to the Effort Report Episode on The Messy Execution of Reproducible Research where they were discussing the piece about Amy Cuddy in the New York Times. I think both the article and the podcast did a good job of discussing the nuances of the importance of reproducibility and the challenges of the social interactions around this topic.
Sometimes, when I write a really long blog post, I forget what the point was at the end. I suppose I could just update the previous postbut that feels wrong for some reason. I meant to make one final point in my last post about how better data analyses help you reason about the data. In particular, I meant to tie together the discussion about garbage collection to the section on data analysis. I just got back from the rOpenSci OzUnconf that was run in Melbourne last week.
These events are always a great opportunity to meet people just getting started in the R community and to get them involved.
As is typical for these unconferences, topic ideas were pitched via issues on the OzUnconf GitHub repo. The gist of Face ID is that it recognizes your face using a mathematical representation and then unlocks the phone when it can confirm that it is you. When we teach the class an exploratory graph is the kind of graph you make for yourself just to try to understand a data set.
An expository graph is one where you are trying to communicate information to someone else. Communication Both of my podcasts have a co-host who is not in the same physical location as me. Therefore, we need to use some sort of Internet-based communication software (Skype, Google Hangouts, FaceTime, etc. A lot of it was YouTube videos of advanced editing or very basic stuff. Home About Archive Conferences Courses Interviews Contributing RSS Twitter GitHub Built with blogdown and Hugo.
For example:Look around you. From the tube of toothpaste in your bathroom to the planes flying overhead, you see hundreds of products and processes every day that have been improved through the use of statistics. Affordable storage, powerful computers and advanced algorithms have all led to an increased use of computational statistics. But why is there so much talk about careers in statistical analysis and data science.
It could be the shortage of trained analytical thinkers.