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Pillar of the Community
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Does anyone know how many Mint Mark variations are on the 1958-D LWC. I have so far found 8 variations. Dan |
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Pillar of the Community
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Do you mean RPMs or mintmark styles?
There is only 1 mintmark style for 1958, and there are currently around 60 RPMs listed online.
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Pillar of the Community
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Pillar of the Community
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Mintmarks were added to the die by hand back then. Technically, every single die used to strike 1958-D would have the mintmark in a slightly different location. Could be thousands of different positions.
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Bedrock of the Community
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Interesting thought experiment! The upper bound would be if we assume that every die used to strike the '58 nickels in Denver had a different mintmark location. So then how many dies does the mint typically use in a year? Someone here must know that, although consider asking the mods to move your thread to the general section or modern coin section so that more eyes see your question (and hand-punched mintmarks having different locations on the field is really neither a error nor a variety).
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
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Pillar of the Community
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Coop, is an RPM, the same as the location of the MM.
Can you further explain what is meant by RPM, what would be the reason to re-stamp the mint mark ?
Dan
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Bedrock of the Community
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I don't think RPM and mint mark position are the same thing.
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Pillar of the Community
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A RPM (Repunched Mintmark) is a variety where the mintmark was punched, either intentionally or unintentionally, multiple times. It could be they slightly misplaced the mintmark and attempted to correct it, or the mintmark punch shifted as they were trying to make a stronger impression. They are very popular and many people collect them.
Mintmark location is completely different.
Edited by Tanman2001
03/02/2019 7:38 pm
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Bedrock of the Community
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Quote:
So then how many dies does the mint typically use in a year? Depends on what time period you are taking about. Die life has improved over the years with improvements in die steel and the lowering of the relief. For 1958 a good estimate for die life would be cents 500K to 750K, nickels about 200K dimes and quarters maybe 400 to 500K. So take the mintage and divide by the die life and you will have an estimate of the number of dies used. 1958 D cent had a mintage of 800,953,300. So between 1,070 and 1,600 die pairs, 58 D nickel mintage was 168,249,120 so about 840 die pair. |
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Pillar of the Community
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Quote:
is an RPM, the same as the location of the MM. Not always. Some show major seperation in terms of location. Quote:
Can you further explain what is meant by RPM, what would be the reason to re-stamp the mint mark? I've not used a punch as small as a mint mark, but have used some a bit larger. If the first impression was felt to be inadequate, then followup attempts would take place. If the first impression favors or is deeper to one direction, then the second impression is needed to balance out the depth on the opposite side. I think this as well as an unitenional double tap to the mint mark punch is the cause of a lot of the RPM's that display minor notching. Though I'll save the minor ones in my collection, they seem less interesting to me, especially if I need greater than 10x magnifacation to see it. The ones showing full seperation with little to no magnifacation I find more interesting. I don't have the link at the moment, but read somewhere the mints had alignment jigs available to aid them, but was more time consuming. Thanks, Doug. Edited by Halo1st
03/04/2019 3:03 pm
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Pillar of the Community
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I'm not asking about MD, Or DD mint marks. I'm asking about the location/orientation of mint marks. Every stamped mint mark has a unique footprint, it can't help it, being hand stamped. So what I'm asking, is how many different location/orientations are there in a 1958-D LWC. Apparently they use many more dies than I had expected. Dan |
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Quote:Does anyone know how many Mint Mark variations are on the 1958-D LWC. I have so far found 8 variations. Never seen any mint records showing the exact amount of dies that were manufactured and then how many of thou's were actually used in production for a given year. Do believe its many times greater than 8. Quote:
I'm not asking about MD, Or DD mint marks.  Don't see any comments concerning MD or DD. Thinking that's two different subjects entirely. Quote:
Every stamped mint mark has a unique footprint, it can't help it, being hand stamped. Sometimes, it just depends on the individuals hand / eye coordination. Some are real close in location and orientation, but yet different dies. Then others are way off the mark. I'm thinking as long as its under the date and right of the bust, it was thought to be acceptable on the dies used to make 1958 cents. Thanks, Doug. Edited by Halo1st
03/04/2019 3:23 pm
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Replies: 13 / Views: 2,282 |
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Posted 03/02/2019 5:08 pm
