Here is a reference by a reputable Error dealer https://forums.collectors.com/discussion/comment/11266774/#Comment_11266774
Here is a reference http://www.error-ref.com/missing-both-clad-layers/ What has not been seen, to my knowledge, is a full weight, fully struck...
Look for a scale which weighs to 2 decimals at least and takes AA or AAA batteries (easier to change)
It looks to me like your quarter has environmental discoloration. Were it missing clad, weight would be less than normal. Quarter weight missing...
I would be interested to know the thickness of the coin in mm to 2 decimals. The coin is just slightly heavy. Expected weight/tolerance:...
Agree - not missing clad layer. Were it missing clad, Missing one clad layer weight approximately 5.8 g - 6.1 g
Nickel Oxide is black and Copper oxide is black. The cladding is cupronickel
Perhaps check thickness with calipers at 4 points around circumference. Expected thickness = 1.52 mm -0.102/+0.152 mm
This can happen with a clad coin in acid or in a chlorine pool for a while. In a pool the entire core can vanish. [ATTACH]
Expected weight/tolerance = 2.268 g +/- 0.091 g Agree that it may be a Rolled thick planchet, although the definition of such is not precise. In...
Photo would help but most likely damaged from a coin rolling machine
Here is an interesting discussion which you may find helpful for understanding what is happening with the rim of your coin. For different images,...
The coin is severely damaged and worn. It is reminiscent of a dryer coin, but the curious rim seen from the reverse is interesting. While it may...
It is my understanding that Collectors show little interest in rotations smaller than 45 degrees, except for proofs which will start at about 20...
inquiries@usmint.treas.gov
I communicated via E-mail
I asked the mint what the tolerance was for die rotations. Here is their answer: For circulating denominations the coin rotation tolerance is...
Photo?
There is a name for this: Radial Flow Lines http://www.error-ref.com/radial-flow-lines/
Separate names with a comma.
