1990 Cent Striations? - Coin Community Forum

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Author	Replies: 7 / Views: 929
arelymed New Member United States 12 Posts	Posted 12/03/2017 8:14 pm Hi, I am beginner,and I am trying to understand what happened to this coin and , so I began searching on the internet about the coin and found one explanation that seems adequate: "striations on the planchet caused from scratching imparted by the roller press used to create the proper thickness of planchet prior to the blanking process. Near the end of the roll sometimes the clad strip gets pulled through." https://www.PCGS.com Is this the correct explanation of the paralell lines Thank you Report this Post to the Staff

spru Bedrock of the Community United States 12477 Posts	Posted 12/03/2017 8:25 pm Those look more like linear plating bubbles than roller lines. In Memory of Crazyb0 12-26-1951 to 7-27-2020 In Memory of Tootallious 3-31-1964 to 4-15-2020 In Memory of T-BOP 10-12-1949 to 1-19-2024 Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 12/03/2017 8:29 pm Not a premium for the coin. What ever it is. More of a planchet issue. Report this Post to the Staff
Errers and Varietys Bedrock of the Community United States 74584 Posts	Posted 12/03/2017 8:33 pm Maybe roller lines? Errers and Varietys. Report this Post to the Staff
Crazyb0 Rest in Peace 10197 Posts	Posted 12/03/2017 8:49 pm Many factors can happen. It is definitely a production problem, but not an error, just comes with the territory. If there was any residual debris, air,oils, fibers when the plating was applied, this would cause a oxidation under the layer of "zinc rot" which could form those lines after the striking of the coin. I think that is a more plausible explanation than roller lines. A planchet with a line "stiration" will flatten out under the hydraulic pressure of stamping over the "high" points, such as the bust. Lines are present, this is formed post strike, hence, zinc rot. Report this Post to the Staff
cookiemonster Pillar of the Community United States 1335 Posts	Posted 12/04/2017 06:35 am if you look at the right side of the 1 it kinda looks like it goes with the lines ,blank had something going on before striking.can you get a close up of it . ? Report this Post to the Staff
stoneman227 Pillar of the Community United States 2376 Posts	Posted 12/04/2017 07:06 am I agree with Crazyb0 as to the options of what caused the effect though I feel that because the lines are consistent in direction, obverse and reverse, the rollers played a starting role in creating this anomaly. Classic roller lines , no . Augmented roller lines...... ? Report this Post to the Staff
arelymed New Member United States 12 Posts	Posted 12/06/2017 8:20 pm Hello cookiemonster, Quote: if you look at the right side of the 1 it kinda looks like it goes with the lines ,blank had something going on before striking.can you get a close up of it . ? I am adding the image you requested, thank you for your advise Report this Post to the Staff
	Replies: 7 / Views: 929

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