I agree. Particularly this: "To differentiate between planchet abrasions and post-striking nicks, contact marks and mis-handling, examine the...
The rim of virtually all coins -- and certainly modern stackable ones -- gets beat up first. AND THAT IS KEY! You see a coin with perfect rims...
Someone with a microscope and a nice set of high grade jeffersons should take some 20x-100x photos of the cheek with planchet defects versus a...
OK, forget all the discussion.... LOOK AT THE COINS!!!!!!!!!!!!...
To the contrary, I acknowldeged this point in post #42: The underlying point is this: A planchet isn't a perfect solid, its a malleable metal...
An ear hole.
It's an S mint mark, and yes, it does raise the value quite a bit. ;) I paid $230 for that coin in 2005, IIRC, and I am not sure what the value...
p.s. in point of fact, the pressure is a bit lower than the above formula, because of (and as I recall), essentially two things -- first the metal...
Ice, I'm sorry to say but you are incorrect. Your formula was Pressure= Area * Force. The correct formula is: Pressure = Force / Area or...
Great examples, Lehigh! One thing... I disagree. I think they should be "discounted" instead. The thought being they do detract from the eye...
p.s. there is also a subtle difference in luster in the not-fully-struck area indicating a planchet defect, versus a contact mark.
It is also worth noting -- and this is EXTREMELY DIFFICULT TO DO IN PHOTOS -- that there is a very subtle difference in planchet defects and...
p.s. you are welcome (for what, I'm not sure). :)
That is your opinion. Clearly there are differing viewpoints. Who's right? All of us as grading is subjective.
You are incorrect, IMO. The reason is articulated in post #17. In short, if striking force is kept constant (as it is in modern coin presses),...
I'm not 100% sure but my sense is that either the area is fully struck, or the striking pressure is sufficient to obliterate them even in an...
Think about effective striking pressure on an off-center strike and you have your answer (for example, if the striking pressure is 1000 pounds...
It would be very easy to prove if you had a "before" and "after" of a planchet and the coin minted by that planchet. If you are to believe me,...
p.s. as a coin's metal is pressed into the high-relief and typically-not-fully-struck areas, the planchet marks are minimized relative to their...
Nice try.... Here's the hole in your logic.... There are simply no areas in the resulting off-center coins that are weak enough to not...
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