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Collar Clash

Posted: Thu Aug 11, 2022 2:26 am
by SilverToken
Is this a collar clash?

It is approximately from 5:00 to 10:00 and follows the rough diameter of a Morgan. The denticles crush deeper towards the center.

Thanks in advance

Re: Collar Clash

Posted: Thu Aug 11, 2022 2:58 am
by messydesk
I don't see a collar clash on that coin.

Re: Collar Clash

Posted: Thu Aug 11, 2022 3:04 am
by DHalladay
This is collar clashing (1921-P VAM 3CA2):
3CA2 collar clash.jpg
3CA2 collar clash.jpg (208.4 KiB) Viewed 990 times

Re: Collar Clash

Posted: Thu Aug 11, 2022 12:21 pm
by SilverToken
OK

Then is it just considered a clash on the denticles, crushing them 1/2 way down?

Re: Collar Clash

Posted: Thu Aug 11, 2022 2:15 pm
by messydesk
SilverToken wrote:
Thu Aug 11, 2022 12:21 pm
OK

Then is it just considered a clash on the denticles, crushing them 1/2 way down?
Not a clash at all. A clash is when dies hit each other and cause subsequent coins to show the after-effects. Did you happen to catch the doubled stars?

Re: Collar Clash

Posted: Thu Aug 11, 2022 2:56 pm
by SilverToken
Then what is it called when the denticles are called when they are mashed 1/2 way in a semicircular fashion?

I recognized the double stars, but that is only part of my investigation....

Re: Collar Clash

Posted: Fri Aug 12, 2022 12:51 pm
by SilverToken
This is found on the 1896 4a, not the 4. I was seeking the correct term, without calling it correct term.

I believe now that it is a denticle clash, just not noted on the VAM, like the die crack above the AT in states

Re: Collar Clash

Posted: Fri Aug 12, 2022 5:56 pm
by Unc90o
Then what is it called when the denticles are called when they are mashed 1/2 way in a semicircular fashion?
Imo, that's an error due to ejection impact or die slide when the coin was ejected right after struck.

Re: Collar Clash

Posted: Sat Aug 13, 2022 4:13 pm
by SilverToken
Unc90o wrote:
Fri Aug 12, 2022 5:56 pm
Then what is it called when the denticles are called when they are mashed 1/2 way in a semicircular fashion?
Imo, that's an error due to ejection impact or die slide when the coin was ejected right after struck.
Would that ejection impact account for all of my 96 Vam 4a's and the image posted on Vamworld having the exact subsequent crushed denticles?

FYI the 96 Vam 4 does not have this feature

Re: Collar Clash

Posted: Sat Aug 13, 2022 4:34 pm
by Unc90o
I don't know how many times the mint worker do adjustment on the press machine. But with an average of 200k coins struck per die pair, the answer is yes.

Re: Collar Clash

Posted: Sat Aug 13, 2022 5:16 pm
by SilverToken
good enough for me!

Re: Collar Clash -Correction- Solved

Posted: Mon Aug 29, 2022 7:50 pm
by SilverToken
PER Vampicker- this is not ejection impact (or as Vampicker referred to as ejection doubling) but “Strike Doubling”. So anyone who noted this, please correct any adjustments you may have done in your references since this last post.