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 Replies: 10 / Views: 933 |
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Valued Member
United States
284 Posts |
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Valued Member
 United States
284 Posts |
What did CCF's software do to my MM image? That exceeds oboxious!
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Bedrock of the Community
United States
62064 Posts |
Looks like Machine Doubling? Can you get a shot somewhere between the two mintmark area images. On is too far away and the other is too close. If it is Machine Doubling you would see in the same direction, affecting the UNUM on the SW corners of the devices. If no Machine Doubling is there, then it maybe a RPM. Just can't tell for sure with the images provided so far. |
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Valued Member
United States
284 Posts |
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Pillar of the Community
United States
3207 Posts |
I concur on maschine doubling though that's an uncommon location for it.
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Valued Member
United States
284 Posts |
Will this do @coop?  |
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Valued Member
United States
284 Posts |
@nick10, Machine Doubling requires erratic movement of either the machine or the workpiece. In this case, the "machine" is the working die, It could not isolate evidence of its movement to this singular region. If you can cite evidence elsewhere on the workpiece, i.e the coin, that movement took place between the die and the planchet, your thought deserves some credence -- but only if you can. I suggest you cannot. I suggest the required movement had to take place between the hub and the die. I may be wrong, but grant that I'm logical. Kevin |
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Bedrock of the Community
United States
62064 Posts |
But see how much it doesn't look like Machine Doubling now. Now just got to figure out the location of the mintmarks to match up to. I opened V.V and one of the first ones on the second list looks a lot like it: http://www.varietyvista.com/05%20JN...3PRPM038.htmNot saying it is, just got to figure out how I'm going to make locations for these. The RPMs don't show the distance below the base. Just the tops of the EPU.   Edited by coop
04/09/2021 7:56 pm
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Valued Member
United States
284 Posts |
Thank you for joining my interest in the history of this coin and ignoring (as I do) its potential value (except to the science of numismatics).
Kevin
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Bedrock of the Community
United States
62064 Posts |
Ok, I see a match. 1943-P RPM-038. Now do you see how I determined this?
Image one:
1. Made the image horizontal.
2. Made the lines for the outsides of the mintmark.
3. Made the horizontal for the top of the mintmark.
4. Determined where the lines located on the outside edges intersected on the EPU devices.
Went to the site and chose the images that matched the RPM. There were 4, Copied them and started to edit them.
With out the bottom of the images, I have to added the lines on the outsides of the RPM areas. Check to see what width devices were in common with all 4 images. Noted the outside on the right of the 'S' and on the left bottom of the 'I'. Cropped all the images to these widths. Made them all 400 Pixels wide. Placed them into the 4 square image. It was then I was able to see which one was a match. The lines interesected on the EPU devices correctly. It was a match. Put it all together and posted it. Just a few minutes. But I thought I would show, HOW I did it. That is the way to determine which is the right RPM. Works for me.
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Valued Member
United States
284 Posts |
@coop Fascinating and instructive. Is it Pareidolia on my part or do you, too, see the Stage C die chip in my posted image? Kevin Edited by Kcm
04/10/2021 09:39 am
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Replies: 10 / Views: 933 |
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Posted 04/09/2021 12:48 pm
