I looked at the Lange reference. He seems to maintain that the same D mintmark was used from 1933 through 1979! I can see that might be a generic...
Thanks - most helpful info! What is the source of your text on 70-81? Here is a brief paper I put together. Not really directly applicable to my...
Excellent article. Thank you. I am not sure it helps me understand though. Let me spell out my question in a little more detail: MMS-006 was...
Thank you so much! Never once did it occur to me to check mint mark styles! You are right on target with a most helpful answer! I am amazed that...
If that is not a split serif then what is it? It is repeated on every one of these coins.
I have a red arrow pointing at the split serif. You might have to click and expand the photo a wee bit. As I said it is minor - smallest I have seen
Just sharing. 1960-D SD RPM Looks like an unlisted RPM. Very difficult to see, much less photograph! Has plenty of significant markers! This...
Just thought that I would share. Mad Die Clash site appears to identify attributions with a numbering system which assigns a number to a clash...
Thank you Mike Diamond! This means I will need to change my research report and definitely add this as a rather rare example!
Thank you!
VERY interesting!! May I use your photos for educational purposes?? I am thinking that this is a folded over rim fin, although it has some rim...
Ken Potter has said about this type of damage: “This is damage from the inside diameter of a tube in a coin wrapping machine. The inside of the...
Thanks for the better photos! Agree off center strike. Guess value @ $5 - $10
What is the error? Where exactly is it? We need to see clear photos out of the plastic. We need to see a close up of this error?
Can't see your coin in these photos. It is a Half Dollar not a half cent. Why do you think it is rare?
My Dad went to Watchmaking school in the 1920s/1930s and I inherited his watchmaking tools. This micrometer was with those tools. I see similar...
I have one similar and it seems to work fine. I also have one like this which is especially useful if I want to measure inside the rim. [ATTACH]
If the thickness is not also outside of tolerance, I would think it is not a candidate for collecting. Thickness tolerance = 2.15 mm +/-0.102 mm
Half Dollar Weight/Tolerances: 11.500 g +/- 0.400 g = silver clad 11.340 g +/- 0.454 g = Cupro nickel clad 1873-1947: 12.50 g +/- 0.097 g 1.8...
Most likely the quarter has either been plated as a novelty item after it left the mint, or a dull punch has pulled the cupronickel cladding over...
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