GDJMSP, I understand and agree with what you are saying but I have one questions. How do you know that everyone polishing die for the second...
That is a weak strike on the obverse. I bet they just took the top part of the die (probably old and being retired) and then placed it on a...
Insider, your point is a good one. The scratches that we see in the lab, and are worried about, may not be enough, if on a die, to show up on a...
The examples that robec just posted look to me like someone polished by hand the rougher grit stage of their polishing protocol. By hand I mean...
We make a lot of polished cross sections of all kinds of metals and materials at my lab when doing failure analyses. We use a process much like...
Yes, as I understand if you take the collar off you can fit any size coin under any denomination press. But that would have to be done on purpose....
What do you think caused the color of this silver coin? It is listed as INDIA -MUGHAL EMPIRE - AURANGZEB - 1 RUPEE -AH 1116 //49 (1704 AD) SILVER...
You are right. That was a deceptive picture.
Why is it impossible to strike a penny on a large blank but possible to strike a dime on a nickel?...
The bezel is pure copper (as close as my EDS detector can tell anyway) and the penny is brass (~96% Cu, 4% Zn) which is about 1% off for what it...
And as paddyman98 said I can test it easily enough in my lab. It is pumping down in one of my scanning electron microscope right now.
If they are different materials then that proves that. If the same material, extremely unlikely when one considers all the different alloy mixes...
I think the bezel theory is a good one. I will check to see if the outer bezel material is the same as the coin.
I have had this coin for a few years now, at least, but I never really understood what happened to create this error. The best I can come up with...
To me it looks like someone used some kind of a hole tap and hit it with a hammer. The damage on the back I am guessing corresponds to the damage...
Interesting. I don't understand the double rim but nothing else doubled. It is kind of like a double strike but also like a slight off center....
Ever find a "Where's George?" stamped bill? You log the bill online and see where the bill has been. I think the people that stamp and release...
Yes I know. But this thread is listed in the FAQ so I figured if it is not up to date someone should know to either fix it or remove those links....
The New England Numismatic Association (NENA) list the clubs in New England at this link:...
The two links in the initial post of this thread no longer work. FYI
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