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Bedrock of the Community
United States
62064 Posts |
But that wasn't the point. It is the opposite? Think a bit more.
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Bedrock of the Community
United States
74444 Posts |
 I don't really know Coop. I'll have to think about this more clearly and deeply.  Errers and Varietys.
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Valued Member
United States
407 Posts |
Separation of serifs. I know this is my first post, but you guys and gals have given me LOTS of info while I've lurked over the years.
Keen find, that RPM.
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Bedrock of the Community
United States
74444 Posts |
 To CCF pound_foolish! It's great to have you here and I'll look forward to your future participation! I'm glad you have lurked here for a long time.  Errers and Varietys.
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Moderator
 United States
188770 Posts |
Quote:
Separation of serifs. I know this is my first post, but you guys and gals have given me LOTS of info while I've lurked over the years. to the Community! |
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Valued Member
United States
407 Posts |
Are you kidding me? Thank YOU! Not to take away from the OP, but I've just gone through hundreds of what I *thought* were just circulated wheats (that I've had for quite some time, having picked out semi-keys for my own album, and then looking for DDOs) and found easily a dozen RPMs. Among them the venerable 1927 D/D, 1936 D/D, two 1930 S/S, a spiffy 1912 S/S, 1934 D/D, and at least 2 varieties of 1953 D/D. I'll gladly start a thread of my own and show them off shortly.
My goodness, to think the average person regards them as just "old pennies" makes my heart skip a beat.
Marty
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Bedrock of the Community
United States
62064 Posts |
Sorry I got busy. Next clues....   Someone going to figure this out. |
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Pillar of the Community
 United States
1901 Posts |
Coop you trying to say we know it's not MD because the date is not effected?
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Pillar of the Community
United States
7512 Posts |
Quote:OK class. This is a RPM, why how could you prove that it is not Machine Doubling? The position of the MM is a match. Edited by Chase007
06/07/2018 8:24 pm
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Bedrock of the Community
United States
62064 Posts |
Ding, Ding. We have a winner. Most of the time when you look at machine doubled examples, were are looking at the date and the mint mark area. Most of the time, the MD and the mint mark are equally affected the same. With this coin, the RPM does look like MD. But it is not and the date unaffected proves it is not Machine Doubling. (along with the fact if is a known RPM. Nut again the correct shape of the RPM proves it is also from a mint mark punch. The coins above area 1963-D Dime and Quarters. There was a lot of MD that year also. But I'm still working on something else to look for on MD or RPM mint marks. Be back soon.  I know this look basic, but a lesson is here. Note the MD causes the metal to move around on the mint mark. Distorts it. But note the one that is a RPM. The metal is not pushed around on RPMs Why? Because the metal on the die contains the mint mark shape (excluding die wear), because the RPM is on the die. It makes it the same shape each strike. MD will vary in shape. CoopHome RPM vs MD Edited by coop
06/07/2018 11:37 pm
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Pillar of the Community
United States
1901 Posts |
Well glad I could bring a lesson to your classroom coop.
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Bedrock of the Community
United States
62064 Posts |
Sorry. Just the teaching side of me coming out again.  I guess I view things differently. Instead of seeing a boring coin, I see potential on how it is unique and why it is unique. Sorry. |
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Pillar of the Community
United States
1901 Posts |
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Pillar of the Community
United States
1901 Posts |
That's what this site is about.
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Pillar of the Community
United States
751 Posts |
On another thread we were discussing a hoax, 1953-D owner claimed DDO. Turns out it was a photo from a previous attempt to fool everyone. I had just found a 1953-D with a RPM mintmark, and Tropicalbats gave me this link. Here is a photo of the one I found. Dan  |
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Posted 06/07/2018 3:30 pm
