1979 p quarter struck on wrong stock?

Other coins that people sell on dime stock I see weigh 4.1g but this one is 4.9g could it still be struck on dime stock or other?

 

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According to Wikipedia, the target weights for a Washington quarter are:

Mass (silver) 6.25 g, (clad) 5.67 g, (silver clad) 5.75 g

I'm still looking for the tolerances, but I was wondering where you got the "4.1g" number.

(I realize that 4.9g is still way off the numbers I quoted above)

 

great contest! figure out who is right and who is rong. ;D

 

Did I win? What did I win?

Chris

 

Could be just a rolled thin planchet.
A clad dime planchet weighs 2.268g.

 

I have the 1970 D quarter dollar struck on dime stock.

My educated guess is this is struck on end-of-strip stock. Just before it ends, it sometimes thins out.

 

If there is no copper showing on the edge, my guess would be struck on a nickel planchet which would be the correct weight

 

Probably struck on rolled thin stock but not struck on dime stock thickness. A quarter struck on dime stock would weigh about 4.16 grams

And not when we say struck on dime stock that does NOT mean struck on a dime planchet. It means struck on a quarter sized planchet cut from strip rolled to the thickness used for dimes. The area of a quarter planchet is 1.83 times that of a dime, so a dime stock quarter would weigh 1.83 times that of a dime or 2.27 grams * 1.83 = 4.16 grams.

Hommer has a good point about the five cent piece planchet. The diameter would also be slightly smaller than a regular quarter and most likely part of the inscriptions would be off the planchet in some areas. (Never mind this part, the pictures show that it is not on a five cent piece planchet. Back to rolled thin.)

 

Rolled thin. I would weigh it again when you have turned off your scale and turn it back on and press tare before you put the quarter back on.

 

Looks like a worn circulated Quarter. IMHO.

 

Did you read his description? Circulation takes off that much weight?

 

I agree to rolled thin.

But you are misunderstanding.. It would not be struck on a Dime Planchet but on stock intended for Dimes that were cut into Quarter Planchets.

 

I know... Just wanted to start some trouble .. I'm bored.

 

Here are 2 from my collection - look at the weights -

 

Let's see a picture of the edge. If it was struck on a nickel planchet there would be no copper showing and the reeding might be absent.

 

If it was struck on a nickel planchet some of the peripheral lettering would be crowding the edge or missing.

 

If it was on nickel stock, I could tell instantly with my detector.
But while a nickel planchet is 5 grams, if the nickel stock was rolled out for a quarter, it would be heavier and not lighter than 5 grams.
Nickel is thicker, but the quarter is larger. It's not nickel.
Nickel thickness 1.95 mm quarter thickness 1.75 mm. Diameter of a nickel 21.21 mm diameter of a quarter 24.26 mm.
Density of nickel 8.908 g/cm3 density of copper 8.96 g/cm3.
So if someone could take the size of a quarter, and thickness,
using nickel stock they could figure out the weight. My guess it is heavier than 4.9 grams.

 

Area of a quarter is 1.3 times that of a nickel so a quarter on nickel stock would be 5 gm * 1.3 = 6.5 grams

 

A nickel is 75% copper, so the densities are very close.
A clad quarter weighs 5.67g. I was thinking in the 6 range, but that was just a guess.
My first impression (if this coin is legit) is a thinly rolled planchet.
But dime stock is possible, what kind of strike would that make?

 

Too heavy for dime stock. Even if the dime stock was rolled slightly thick so that dimes punched from it would weight the maximum tolerance weight, quarters punched from it would still only weigh 4.33 grams. The OP coin weighs 4.9 grams more than half a gram more than that.