Is it possible to have one side "blank"?

Specifically, I don't mean a blank planchet wherein "blank" is a descriptor of what the planchet looks like right before the coin gets struck (and also when the rim is already formed). But rather, where one side looks as if it was just punched out of the alloy sheet - it's completely flat with no concavity or raised rims. The other side has a raised rim and is indistinguishable from other regular coins. Is this possible or are all examples machined blank PMD?

Thanks in advance!

 

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No.. not possible

 

When the Blanks are fed into the edge Upsetting machine both sides will be raised. There is no way one side will stay completely flat.

 

Sometimes I feel like I've been fed into an upsetting machine...

 

I guess it's impossible for that to happen today, since the machine tolerance is tight (@2:12 below). But what about back in the day, like in 1900?

 

OK it looks like the same general principle was used for hundreds of years: https://medalblog.wordpress.com/2011/02/21/i’m-upset-upsetting-machines-get-no-respect/

 

If two planchets were stacked and stuck together, then it could be possible to have happened. Time of when, is the key.

 

Yeah I thought about this but the tolerance is too tight, at least for modern coins.

Though, I guess it's possible if you get the wrong denomination in...

I was looking at this coin (the other side is a fully struck IHC obverse).

 

One quick look and I can tell it Post Mint Damage. That Reverse was manually removed.

You would need equal pressure on both sides in order for the Obverse side to be fully struck as you stated. There a Coins that are split in half after they are struck but I don't see the evidence on yours.

 

Here is an example from my collection -

 

And here is an example of a Struck on a Split Planchet. It was split before the strike.
From my collection -

 

Actually, now that I think about it some more... maybe two blanks can stack on top of each other and fit in the upsetting mill if the sheets they came from were deformed or flatter than normal. But they'd still have to somehow end up on top of one another...

 

Wait a minute... what if the blank skips the Upsetting Mill and goes straight to the strike?? Though I guess both sides would likely be struck. But still possible, right?

 

I received this coin from my sister many years ago, she gave it because of the date, my birth year, and the weight of the coin is 3.0 , as I read the post reminded me of what I have and is it what this post is discussing? Ty
Dottie

 

Not true. It is possible if the other die was flat with no rim cut into it.

 

It looks like it is probably a brockage.

 

Yes, it is called a brockage.

 

So the this mean it is a MD, to be able to tell her that she did give me an actual error that started my collection, she would be astatic to hear.
Dottie

 

I don't understand. What is a flat die?