93 Lincoln Memorial Cent / LMC Die Adjustment Strike?

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Author	Replies: 6 / Views: 2,338
quiquelo Valued Member Colombia 86 Posts	Posted 04/18/2011 6:14 pm Could this be a die adjustment strike? The rim is taller than the 1993's I've seen and the outer devices seem weak. The 3 in the date and the LI in liberty are barely visible. Report this Post to the Staff

John1 Moderator United States 56855 Posts	Posted 04/18/2011 7:38 pm I think it's either Grease Filled Die or Die Deterioration, but I am no pro. John1 Report this Post to the Staff
tumbleweedtrumpet Pillar of the Community United States 1418 Posts	Posted 04/18/2011 9:31 pm I think it's a combination of what John1 stated. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 04/19/2011 12:38 am Kind of looks like a low pressure strike. Is the reverse look like this as well? If it looks normal with no weakness, then it may be a struck through error. If you could put an image of the reverse on the thread that would help. ADDED: Just noticed the question you asked it it were a trial strike? This image may help you to answer your question: Edited by coop 04/19/2011 12:41 am Report this Post to the Staff
mikediamond Pillar of the Community United States 2737 Posts	Posted 04/20/2011 12:03 pm The 1993 cent was definitely Struck Through Grease. The well-struck design rim, the uneven pattern of weakness, and the appearance of metal flow on the affected design elements are all indicators of this. As to why grease sometimes causes metal flow, I haven't a clue. Error coin writer and researcher. Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 04/20/2011 12:55 pm Is it me, or is this one showing some serious Machine Doubling? I wonder if the grease was involved. Nose, chin, ear...was the alignment off, heavy in the west/northwest? It almost seems like LIBERTY and the beginning of IGWT are "smudged" by a moving clockwise shift during the strike. Edit: I don't know enough about the process to be sure, and it doesn't seem intuitive, but could the upsetting mill somehow contribute to the flow lines? The actual "squeeze" couldn't, but something has to flatten and shape the rim evenly parallel to the coin's face. I'm just grasping at solutions because I'd think the presence of grease on the die would pretty much negate flow lines. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 04/21/2011 11:50 am The die flow lines are indicative of a worn die. It is not part of the upset process. The upset process makes the rim on the coin raise by running it through a narrowed channel. Report this Post to the Staff
	Replies: 6 / Views: 2,338

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93 LMC Die Adjustment Strike?