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Cleaning W/ Cartwheel & Luster Post Op Still Possible

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Pillar of the Community
United States
5825 Posts
 Posted 09/26/2019  5:30 pm  Show Profile   Bookmark this reply Add kanga to your friends list
The cartwheel effect is the result of very fine radial lines caused by metal flow during striking.
Whizzing (and other physical cleaning) will wipe those line out.
Chemical cleaning (dipping) unless done VERY quickly will do the same.
Rest in Peace
United States
17900 Posts
 Posted 09/26/2019  5:51 pm  Show Profile   Bookmark this reply Add moxking to your friends list
Kanga nailed it. Learning to see how a coin was cleaned is as important as the results of that cleaning.

Pillar of the Community
United States
3546 Posts
 Posted 09/27/2019  01:45 am  Show Profile   Bookmark this reply Add mdpmedia to your friends list
This is why I am still confused; the close-up looks like the obverse has some whizzing going on around 3 o'clock but the cartwheel/luster still seems to be present in that general area:


Cleaning-W/-Cartwheel-&-Luster-Post-Op-Still-Possible
Cleaning-W/-Cartwheel-&-Luster-Post-Op-Still-Possible
Pillar of the Community
United States
3546 Posts
 Posted 09/27/2019  01:58 am  Show Profile   Bookmark this reply Add mdpmedia to your friends list
These should hopefully help further clarify what is going on with this coin:

Cleaning-W/-Cartwheel-&-Luster-Post-Op-Still-Possible
Pillar of the Community
United States
3546 Posts
 Posted 09/27/2019  02:08 am  Show Profile   Bookmark this reply Add mdpmedia to your friends list
Here is the same coin for those who would like post their grade:

http://goccf.com/t/356674
Pillar of the Community
United States
1543 Posts
 Posted 09/27/2019  06:14 am  Show Profile   Bookmark this reply Add Gincoin43 to your friends list
That coin is very shiny and very flat.
Bedrock of the Community
United States
17884 Posts
 Posted 09/27/2019  11:53 am  Show Profile   Bookmark this reply Add Conder101 to your friends list
Rotate the coin and watch the cartwheel. See if it changes as it passes through that area.
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 Posted 09/27/2019  12:21 pm  Show Profile   Bookmark this reply Add mdpmedia to your friends list

Quote:
...watch the cartwheel.


I was actually a step ahead of this suggestion and had already made a short 13 second video of the cartwheel moving.

I wanted to upload this very short Media Player-type (.MOV) to this thread but it was unbelievably 8MB in size.

I have seen multiple other videos on CCF and would like to know if anyone has some ideas on how to get this accomplished?
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United States
1543 Posts
 Posted 09/27/2019  1:00 pm  Show Profile   Bookmark this reply Add Gincoin43 to your friends list
Upload it somewhere else first then embed it
Pillar of the Community
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1543 Posts
 Posted 09/28/2019  6:28 pm  Show Profile   Bookmark this reply Add Gincoin43 to your friends list
Youtube would probably be the easiest place.
Pillar of the Community
United States
3546 Posts
 Posted 09/28/2019  8:24 pm  Show Profile   Bookmark this reply Add mdpmedia to your friends list
Here's the same post I just put in the grading thread for this same coin:

I was pushed for time and blazing trails using YouTube's beta uploading product but I will eventually redo this vertically with a much longer recording while also including the reverse twirling cartwheel:

Hopefully, now I can get some more informed opinions insofar as the effect that the cleaning(if applicable) had on this coin. What I mean is that the scratches that kind of look like whizzing may possibly be random abrasive surface marks from something being rubbed over it etc?

f_n2KFQuhhI


By the way the previously alluded-to and exceeding large 8 MB file size that Microsoft's Media Player created for the same video became a non-factor once I uploaded the same file/size to YouTube which created the necessary format to integrate with CCF's video production constraints.
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United States
36844 Posts
 Posted 10/06/2019  12:18 pm  Show Profile   Bookmark this reply Add IndianGoldEagle to your friends list
Whizzing is done with a high speed wire brush. It usually leaves very tiny dimples in the protected areas where only the very small tips of the wire hit the surfaces. They used that technique to simulate cartwheel luster by brush from the center of the coin out to the edge while rotating the coin. If you know what to look for it is very easy to spot.
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United States
17884 Posts
 Posted 10/07/2019  10:22 am  Show Profile   Bookmark this reply Add Conder101 to your friends list
Not seeing cartwheel in the video.
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United States
74842 Posts
 Posted 10/08/2019  10:40 am  Show Profile   Bookmark this reply Add Errers and Varietys to your friends list
The luster is there, just weak.
Errers and Varietys.
Pillar of the Community
United States
3546 Posts
 Posted 10/08/2019  3:24 pm  Show Profile   Bookmark this reply Add mdpmedia to your friends list

Quote:
...luster is there


That's accurate it's just that my skills to relate it as it appears in real time are not yet up-to-snuff; stay tuned it's just not a top 5 priority as of yet.

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