I am surprised that no one called this one AU. I see nothing on the coin really to keep it from a 64 or, if you don't know it too bad for luster,...
Just to stress Leadfoot's answer (F = P * A or P = F / A) normal coin force = 400 tons (about right) coin area = 1 (a little smaller than a...
Again, I sited formula and reference. Prove me (and the engineering world) wrong.
"Every action has an equal and opposite reaction." The only thing between the dies is the coin. How much more directly can you be? Aside from...
These polls are closing tonight. I don't know if I will get them scored or not. See also http://www.cointalk.com/t124049/
These polls are closing tonight. I don't know if I will get them scored or not. See also http://www.cointalk.com/t124050/
For Doug's example of a partially struck coins; try this. F = P * A (force = pressure * area). See...
Sorry, Doug, but Mike is right. 1/2 the coin in the dies = twice the usual pressure. That is real simple math and physics to me. Per your...
We had specific written permission to dump up to 10 ppm from the site. That was roughly 1 gal. per day of acetone. About 1/3 of that came from...
Well, you had better quit using the urinals then. I guarantee you put more down there than you have ever used for cleaning coins. Sewer district...
Now that you mention it, I remember seeing more than one roll wrapped in ruled paper, newspaper, etc. i.e., any paper someone could lay their...
FWIW, we used to dump it down the drain (literally) all the time during college labs. However, that was before the advent of PVC pipes. Acetone...
As a slight digression, these are what my father kept his barber dimes in. I always thought they were tubes made for coins, but I read the one...
Doug is right about the wrapper in probably every aspect except the date. Yes, you could get 20 silver dollars back in the 20's without a...
I was also searching silver dollars. I will grant you that there were not any mint wrapped rolls (in my area anyway), but there were lots of tubes.
I have no idea where you were raised, but there were definitely rolls readily available in the 1950's in western PA. - both tubes and wrappers. I...
Are you asking what I would say it is or what I think the TPG's would say it is? I do not have a problem calling it NT, but I will virtually...
You should have bought it. After all, it IS less than $60,000.
Looking forward to seeing your coins.
The second on I cannot tell if it is MD or PMD, but I am pretty sure the "third L" is nothing but PMD.
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