| Author |
 Replies: 13 / Views: 1,735 |
|
|
Pillar of the Community
Canada
805 Posts |
Edited by steve123
04/21/2015 09:00 am
|
|
|
|
Moderator
 United States
23522 Posts |
Oooh. Fun one.
The default judgement on anything like this associated with a post-1982 Zlincoln is plating bubbling, even if it's perfectly linear. On the other hand, these lines have the precise look of too-heavy tooling/polishing marks. They seem too sharp-edged for bubbling. The coin (assuming it's real; I gotta say that) looks die-polished so heavily that much of the expected detail from a normal die is missing. And it's missing where you'd expect heavy polishing to erase detail.
If this is all Mint doing, my first question is "why did they bother putting all that work into one of one bazillion dies?"
|
|
Pillar of the Community
 Canada
805 Posts |
SsuperDdave.. I was thinking over-polishing at one point as well. What can't be seen on the photo is similar lines, but extremely faint over the rest of the obverse fields but straight across E-W. Perhaps during polishing, something too abrasive got on the die.
I'm stumped, need more input! Also, the coin is darker than the first photos. If you could use microscopic shots of any particular area, let me know.
Thanks!
|
|
Pillar of the Community
United States
1476 Posts |
Do I see sign's of die clash inside the 3rd and 4th bay?
|
|
Moderator
United States
23522 Posts |
Quote:
I was thinking over-polishing at one point as well. You can't look at the drastic loss of detail on the obverse and think anything else. The fields are ground down to his cheeks, for cryin' out loud.  |
|
Pillar of the Community
Canada
805 Posts |
Hi, Dar. No clashes in there.
SsuperDdave...I get your point and see what you mean about the loss of detail. Examining the photo shows better than in-hand.
Thank you for your help
|
|
Bedrock of the Community
United States
62064 Posts |
Best to use three staples when you showing a rotated die coin. With four we don't know what side is the way it should be up. Bottom and the two sides. None in the top area works best. Then we can read the alignment.
|
|
Moderator
United States
23522 Posts |
Either that or adhere to the near-universal standard of flipping the obverse so the reverse should be straight up and down if it weren't rotated. This is partly because we'd really prefer it came out of the flip before shooting.
|
|
Bedrock of the Community
United States
62064 Posts |
Looks like 16 degrees. Probably die obverse die turned during a clash.
|
|
Pillar of the Community
Canada
805 Posts |
Thanks, coop! Right around where I thought it may be. I'll remember the tips about posting rotations.
Steve
|
|
Pillar of the Community
Canada
805 Posts |
Learning about die polishing is new to me. Never really peaked my interest before, but it has now. I found a link which seems to show what has happened (other than wording). http://www.vamworld.com/Die+PolishingNow there is a line in one of the bays, but it didn't match up with overlays I was using, probably because of the rotation which Dar pointed out. Thank you everyone for all your help. Edited by steve123
04/21/2015 09:30 am
|
|
Bedrock of the Community
United States
62064 Posts |
The biggest use for die scratches/gouges is to identify variety coins. If you can match us the die scratches for a variety, then you are sure of the die number. Just don't do that in reverse. Because if the variety is not there, then the die scratches doesn't matter. Die scratches are like finger prints and may/or may not be present on a known variety. Some events happen during the die life. Events later will not be present on earlier examples and the reverse is true that some events happen and are covered over by later die scratches. They call them fading die scratches. They flatten in the fields but sometimes can be seen next to devices or sometimes inside of devices. That is what I use them most often for.
|
|
Pillar of the Community
Canada
805 Posts |
Thank you, coop! Always a bevy of information. I appreciate your time and input along with Ssuper and Dar.
|
|
Moderator
United States
23522 Posts |
Sometimes - like the above - it just gets totally out of hand. 1921 Morgans got totally out of hand with great frequency.   |
| |
Replies: 13 / Views: 1,735 |
|
Posted 04/20/2015 7:21 pm
