1975-d Experimental or foreign Planchet?

It’s plated that’s all there is too it. He says it weight 2.8 and a 2000d nickel weights 4.1 but he says his scale is correct.... so me must extremely lucky to find a under weight nickel to though on a scale show us that his scale is accurate which it’s not. He need to recalibrate his scale and check the weight of his 75 cent on aforeign planchette again...

 

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I have taken tiny nicks out of the sharp edges of coins many times back years ago to make sure if they were plated or not . Now I can usually tell from just looking at them.Maybe the op didn't think his or her coin was valuable until they examined it. Some folks on here seems to be too happy to shoot others coins down without even knowing for sure what it is.

 

An experienced collector would never damage a coin, in order to ñrove a theory,/assumption.
You have now upheld @Collecting Nut statement.

 

And that's exactly the point I was saying. At least some members got it.

 

You can tell because plating a circulated coin doesn't remove the wear. It just puts an even layer over it.

 

I couldn't have said it better.

 

I will agree with you on a worn circulated but how can you or anyone else truthfully say the op's coin is just plated from a photo when the coin has no wear at all ?

 

I’ve been in the jewelry business for over 20 years. I have a thousandth scale .001 that I have weighed all my coins that are off on to verify the weights from my pocket scales. Yes I have a 2000-d nickel that weighs 4.15 grams. That silver colored penny weighs 2.8 grams. If it was played [edited] does it weigh less than 3.11 and be out of tolerance? Why do you assume that my scales off and that some other error can’t be the explanation. You think I waste my time posting pictures on an online forum when I have exhausted all other options. Local dealers, research ect..... I only post on here when I have not been able to get a direct answer and before I waste money submitting it I’d like to see what the so called experts on here say. So far I only get trashed and get the worst responses on here. Thanks for treating me like a 14 year old idiot. It would be nice if you just took every post for what it says and not question of what I am saying is even real. Anyone have suggestions of a better forum?

 

It’s possible the nickel is a underweight Planchet. However for almost a gram off it would be close to 20% difference in size unless the metal composition is different hence why I think foreign or some other Planchet. If it ends up being so I’ll let you guys know [edited].

 

It started out underweight before it was plated.

 

Have to be thick plating since I scratched it and it does not appear to be plated.

 

Also what would make it underweight in the first place? Since it is not a tapered or thinly rolled planchet?

 

You have messed your thread up by putting that other coin on it.

 

That's a nice example of a 1975-D Plated Cent.

 

How is it plated if a penny, should weigh 3.11?

 

Did you search the spreadsheet in post 30 to see if anything matches the weight that was struck in Denver in the early-mid 70s? If something matches then you have a pretty good chance. if it doesnt, then you have to come up with a plausible explanation of how a random unknown planchet got into the Denver minting process.

Just based on appearance, however, it looks like the countless plated coins that have been posted here over the years. The 2.8 gm weight is unusual but there is a chance it could be a slightly underweight planchet. Plating adds very little weight and with the 0.1 th resolution on your scale, it might not even register. The variation in weight alone is not enough to prove it was struck on a foreign planchet

 

It's not on any wrong or foreign planchet.

The slightly lower weight (plus plating) could be,
as mentioned, that the coin started out a bit light,
an insignificant amount, imo.

It is still a plated copper cent. It is not an error
coin, except maybe it's a few % light - and
even without the plating, would be close to
worthless as such - but even more so as a plated
coin.

Submit it to either PCGS, NGC, or ANACS and show
us that we're wrong. We're not.

 

Well the 1975-d was one I was thinking of buying from a locaL collector. I’m more interested in figuring out what my nickel is.

 

This is what you have to realize with a foreign planchet.
Almost ALL foreign coins have a different SIZE and weight than US coins.
This is done deliberately so as not to mix the same size /weight foreign coins with US coins since the foreign coins are usually worth much less.
(There are a couple foreign coins that are intentionally the same size/ composition and weight as US coins, but in that case there's no way to tell it's a foreign planchet.)
Now, only a coin the same size OR SMALLER can fit in the hub/minting press for whatever denomination coin you are making.
So, to be on a foreign planchet the coin has to be smaller than whatever the denomination is. Which would result in incomplete rims, since the planchet was smaller. If your coin has the complete rim it can't be on a foreign planchet.
The nickel is interesting, it could be on a thinly rolled planchet and 4.14 is below tolerance. Small premium if that's the case.
The penny had some kind of plating applied to it. It is lower weight but not by much. 2.98-3.24 are the specs for copper cents.