Micro-Numismatic Quiz #12 ANSWERED
Insider2
Posts: 14,452 ✭✭✭✭✭
Sorry, no prizes ![]()
I am going to be posting micrographs of anything that can be found on coins. Some will be easy and some will not. The correct answer is whatever I say it is
but feel free to disagree (giving your reason) so all of us can discuss it. Images will be posted in this thread at my discretion - several each week. I will usually post the answers late the next day after the quiz was posted.
In order to make this FUN for beginners. I'll ask the "experts" to PLEASE not guess what any of the images are until the next day. Otherwise, folks like (fill in the blank) will get all of them immediately - That's NO FUN. If no correct answer is given by the next day, the "experts" should PLEASE respond. The answer for each image will usually be posted in the afternoon when I add another image.
The Rules:
1.Anyone can guess. That's because even an incorrect guess can open further discussion as to why it is incorrect.
2.The BEST guess is in two parts:
A. What characteristic the image shows.
B. What did you see in the image that led to your guess.
The Question: In your own words, describe this image to a blind person. What is causing the colorful surface on this coin.
The Image:

Comments
toning.
bob
Remember, I'm blind. Is the toning one color? Is it dark or light? What color? Is it even? Is it shiny or dull?
Me to blind person: Here (give coin to blind person) tell me what you think.... You would be amazed at what can be tactilely “seen.” Not me, I would just be blind.
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Back on topic. What to say in quotes.
“We have a coin that is physically dated with the numbers 1875. There are various colors associated with the coin. They are red-orange, green, brown, and white. These colors are embedded on and around the numbers. The red-orange and white specks are the most vivid. The green and brown are molted and, in contrast, darker.
These colors can be caused by exposing the coin to heat and/or the long-term storage in a reactive plastic holder that contains polyvinyl chloride.”
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Looks like a trade dollor, but did not want to try and describe that. Also, if the person was born blind then my terms for colors probably would not make sense.
That's a very good post! However, look closely as you have left out the reason this image was posted.
typical rim toning, multi-colored....perhaps a rainbow arc?
bob
Looks like some type of goo/jell was wiped onto the date. The most is on top of the 8.
Your reminding me of one of my, long ago, graduate professors. Prodding and prodding until I saw the light. This was a good thing!
I’m probably way off, but I see dirt between letters and believe water or coin being buried in ground caused the rainbow toning.
Looks like heat damage. Not to the point of melting metal but, to the point of uneven discoloration of the surface.
Best way to teach.
GOOD EYE! See how the goo is raised above the surface and reflects the light. The coin is covered in this wet stuff and I expect it was used to color the coin.
Brain overload! Chancre to laquer to goo! 🤯
Can’t wait for the next quiz of torture. 🤪