Rockwell Hardness Test Mark On 2019 W San Antonio Quarter?

To participate in the forum you must log in or register.

Author	Replies: 7 / Views: 561
Tdemars3 New Member United States 2 Posts	Posted 03/21/2023 7:47 pm Hi! I had these 4 graded in 2020. Anacs labeled them as "circle die mark under lip" and noted that "the exact cause of this is unknown and is under investigation". Here I am, 3 years later and I think I finally have an answer!! Rockwell hardness test? I found some images online of other coins with the error and some of them match my Quarters to the T! (I'll include an image of a penny with the error that I found online) So far, I have 4,another man has 3 or 4 and another man has 1 so under 10 known. All in the same spot on the 2019 W San Antonio. My question..is this really considered "rare to extremely rare" and since they're on a W quarter, that should raise the value correct? If you don't believe that this a "Rockwell hardness test", do u have any idea as to what it could be? Thank you all for your time:-) Edited by Tdemars3 03/21/2023 8:31 pm Report this Post to the Staff

silviosi Pillar of the Community Canada 6244 Posts	Posted 03/21/2023 7:52 pm First: the test is perform before the coil will be blanked. No test is done on a blanket or planchet. Second: your mark it is definitively far from the hardness test. Report this Post to the Staff
Tdemars3 New Member United States 2 Posts	Posted 03/21/2023 8:20 pm @silviosi any idea on what it may be? This was ANACS explanation on it. Report this Post to the Staff
Dearborn Moderator United States 96251 Posts	Posted 03/21/2023 10:14 pm Well the dent on the cent could be from a BB gun (what does the reverse look like on this cent?) When presenting coins with big indents on them, please post up full coin images of BOTH sides. Other wise it's like reading halfway through a good book then putting it down, never to be finished. as for the quarter, probably a dent on the die, but from what? Even ANACS can't figure it out. Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 03/21/2023 10:42 pm Sorry for late answer. First the photos provide are a little bit to focus and I can not analyze. Second is the fact that the hardness tests now are done with special machine with different marks on, those marks are not round. Those round test was performed by mint before 2000. Then if a round test is perform the circle is 0.1 mm and no raised borders. Other thing it is: when the roll come, an QA Mint inspector cut a small strife of material, seal and glue a roll No sticker and send to the lab for test in other premise of the mint (separate from the production hardware or line). If the test come positive, that roll will be employ in production. I say this for you to understand that no test is perform on planchets. Some time could occur if the planchets crack during the strike and there samples are send and if negative all the batch is send back to annealing. What could be? A better pics will can help elucidate the mystery. Edited by silviosi 03/21/2023 10:50 pm Report this Post to the Staff
Reno911 Valued Member United States 316 Posts	Posted 03/22/2023 02:48 am Wow, this is an interesting topic. Edited by Reno911 03/22/2023 02:49 am Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 03/22/2023 03:38 am Here are photos of the CPZ classic tests. CONECA publish. So judge your self for your coin. Edited by silviosi 03/22/2023 03:45 am Report this Post to the Staff
jbuck Moderator United States 188660 Posts	Posted 03/22/2023 10:13 am to the Community! Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
	Replies: 7 / Views: 561

To participate in the forum you must log in or register.

All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins

The First Dollar, your premier source for bullion and rare coins. See our bullion list on the site and the coin inventory on ebay.

Silver Gold Bull US is the United States leading bullion dealer. We deliver gold coins, gold bars, silver coins, silver bars and precious metals to your door. Order today!

View Last 100 New Topics

View Last 100 Active Topics

Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited.
Contact Us | Advertise Here | Privacy Policy / Terms of Use

Coin Community Forum

It took 0.28 seconds to rattle this change.