Lines On Slabbed MS Coins - What Are They?

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

Author	Replies: 5 / Views: 1,579
DL20K Pillar of the Community Poland 3201 Posts	Posted 04/27/2016 08:00 am Such lines are sometimes visible on high-resolution images of coins for sale provided by online dealers. The coins in question are often graded MS by one of the two main TPGs. If the slabs don't mention hairlines or cleaning and there is no "details"/"net" grade - what are these lines and how do you tell them apart from the aforementioned problems? Report this Post to the Staff

Numisma Pillar of the Community United States 4963 Posts	Posted 04/27/2016 08:30 am If they go straight up to the devices and stop, they're die polish lines. They were already on the die. Report this Post to the Staff
Cascade Pillar of the Community United States 7390 Posts	Posted 04/27/2016 08:54 am Numi is correct. Those look like proof fields. To get mirrored fields the die must be heavily polished and at that magnification you may see the fine lines from the die polishing. Also, another phenomenon is known as roller lines. That's where a strike was so weak the lines that were on the planchet were not obliterated by the strike as seen in this MS ike below. Point is, there are situations where lines are on s coin that are from the strike or die. Not all lines are PMD but you must study to be able to identify PMD from non PMD lines Report this Post to the Staff
BH1964 Bedrock of the Community United States 10982 Posts	Posted 04/27/2016 10:54 am That's magnified so much they could be metal flow lines. That amount of magnification is never needed. ANA #R3154474 Report this Post to the Staff
DL20K Pillar of the Community Poland 3201 Posts	Posted 04/28/2016 03:32 am Thank you for your answers. The said coin wasn't designated as proof but others with similar effect were. Report this Post to the Staff
SPP-Ottawa Moderator Canada 10458 Posts	Posted 04/29/2016 10:02 pm Rolling marks. Mike Diamond has written about these on US coins (published in Coin World) and I have written about them on Canadian coins (published in the CN Journal). They are inherited from the rolling the strips, and in some cases survived burnishing, rimming and even the strike. They are always parallel on both sides of the coin. You see superb examples on 1968 Canadian nickel dollars. http://www.PCGS.com/SetRegistry/coi...25&sid=82059 "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer Content of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_US My eBay store Report this Post to the Staff
	Replies: 5 / Views: 1,579

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

All Forums Category: General Numismatic Forums Forum: Main Coin Forum

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!

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

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 0.29 seconds to rattle this change.