Frequently Asked Questions


q. I think I have an error coin. How do I reach you?

a. We are sorry, but due to the high volume of calls, we might not respond to every phone call. Instead, please send an e-mail with scans (300 dpi or larger) of your mint error along with your contact info. If you have a mint error that we are interested in, you will be contacted with information on how to send it to us for inspection and our offer. If your mint error is certified (ANACS, PCGS, NGC or ICG) we will make an offer based on the scans. For more information on what we are buying, click here.
q. I just found a double struck Sacagawea Dollar in a bag or a roll from a bank. How do I go about selling this coin?
or
I handle significant quantities of modern coins and run across double struck, off-center, misshaped and off-metal coins. Who should I sell these errors to?

a. We're the nations top buyer of Major Mint Errors. We purchase from many different sources including collectors, dealers, bank tellers, and individuals who may have discovered them in a bag, roll or in circulation. Because of the wide variety of error types, we need to view a picture or scan of the coin. E-mail us with your picture and your best price and we'll get back to you right away. We are always looking to purchase major mint errors and will pay the highest prices.
q. I have a two headed coin. Is this a rare mint error? If so what is it worth?

a. What you have is called a "magician's coin." This is a novelty piece and can be purchased at a magic shop. These have no numismatic value and are for entertainment only. There are approximately thirty genuine two-headed or two-tailed coins that have been authenticated by ANACS, PCGS and NGC. There are only four known "Two Tailed" U.S. coins: three Quarters and one Dime. One of the Quarters recently sold for $80,000. There are six known world coins that were struck with either two obverse or two reverse dies. Two of these are Canadian Copper Cents that were struck with two reverse dies and authenticated by PCGS. I purchased these in a Canadian Mint Error Collection and they have since been featured in a front page Coin World article. Click on the image below for more info.

q. I think I found an error coin, what type of errors are there? Where can I quickly look up information?

a. Visit CoinFacts.com. This Internet Encyclopedia has descriptions, explanations and pictures of the many different types of errors.
q. I've been collecting mint error coins for years and want to have my collection certified. How do I go about doing this?

a. There are three major third party grading services that authenticate, certify and encapsulate mint errors:
1. ANACS - ANACS has been certifying major mint errors for ten years. They have an excellent track record and have slabbed many of the finest errors in the world. Thousands of mint error collectors rely on ANACS's reputation to certify their mint errors.
2. PCGS - PCGS is the largest third party grading service and started certifying mint errors in March of 1999. They are located in California.
3. NGC - NGC is one of the largest third party grading services located in Florida and have been certifying mint errors for two years.
q. I collect mint error coins but I am confused by some of the abbreviations used by the grading services when describing the error. Could you please help me out?

a. Here is the generally accepted list, and primarily used by ANACS, PCGS & NGC:
O/C - off center, D/S - double struck, T/S - triple struck, M/S - multi struck, F/O - flipover, B/S - broadstruck, DBL DENOM - double denomination, CB - counterbrockage, FRAG - fragment, BROCK - brockage, TRANS - transitional, EXP - experimental, PLN - planchet, TR - trial, ADJ - adjustment, STK - struck, PC - partial collar, BND - bonded, MTD PR - mated pair, T1 - type 1.
q. I found a coin that shows doubling of the letters, design and portrait. Is this a double die or a double struck coin?

a. What you most likely have is a coin with mechanical doubling, ejection doubling, or strike doubling. This is very common and has little or no value as a mint error.
q. Where can I find more information about mint errors?

a. Visit minterrornews.com where you can find out the lastest news, discoveries and features as well as download the latest edition of Mint Error News Magazine.
q. I just found a state quarter that looks like it's golden or brass. Is this made out of the same metal as the new golden dollar?

a. Chances are your state quarter has been plated after it left the mint. Check to see if the edge is the same color as the rest of the coin. If it is the same color, the coin has been plated. If the edge is copper colored you might have genuine a mint error. Please e-mail a picture to allow us to evaluate your coin. There are approximately 15 known 1999 State Quarters struck on Experimental Planchets. All five states in the 1999 series (DE, PA, CT, GA and NJ) have been discovered. These Experimental State Quarters have sold for as high as $10,000 each, depending on which state, the coin's condition and which type of experimental composition was used. There are four known types of experimental compositions which have been discovered so far on 1999 State Quarters. Click on the image below for more info.

q. I found a penny (nickel or dime) that looks slightly misshaped or a little off-center. Is this error worth anything? How can I sell it?

a. Most minor errors on the smaller denominations are common and are only worth a few dollars. Either keep it as a souvenir or sell it on eBay.