07 John Adams error

Okay this is a 2007 John Adams. With John Adams face showing, the lettering on the rim is facing up. But as Mr. Potter pointed out two different size lettering's.On the top you have the large numbers. On the bottom you have smaller number.

 

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Who? Harry Potter?
Is this maybe a variety..not an error?

 

What can I say voice recognition sucks.As you well know I'm not really into nothing but quarters. But I have quite a few roles of the presidential dollars. You could possibly be right. All I'm sure about right now is the matted finish is considered an error. Which I do have a couple of those. PS Ken sells them on his site for $14.95

 

Just the difference in pressure in imparting the lettering.

Same size.

 

I thought you were referencing the First Spouse Gold coins but Adams was 2008 not 2007. And checking they are a reeded edge not smooth.

It's magic .... Potter magic !

 

Adams was both 2007 and 2008 actually

 

Oh yeah .. I missed that one but on purpose.

 

So you're saying this is a mechanical error. Due to the missed calibration of the lettering press. It's something to think about. Now let me jump to a Washington 2008 edge lettering. How bout everyone's opinions on what caused these letters.

 

LDS?

 

You mean a Washington 2007, I assume.

 

@usmc60 So you have a Washington Dollar dated 2008?

 

Unfortunately I have to say no. This is what happens when you start getting old. You screw up a lot more. The 2008 D is a James Monroe.USMC60

 

Here's a little follow-up. As mentioned there are two different size fonts letters. Here I'm showing the two different size font letters with a matted edge. You have the small font letters on the position A John Adams facing the reverse, and the large font letters on the position B facing the overs.USMC60

 

I'm confused, what's the error?
To my knowledge- Position A or Position B is just a random variable because the machine that aligns the coins for stamping the edge doesn't care if they are face-up or face-down.
The thickness of the lettering probably has to do with the amount of pressure and the die state of the stamping tool. Having worked with stamps and nurls on rounded parts before, I can say you would probably be amazed at the interesting designs you will produce when they are adjusted incorrectly. A slight change in letter thickness is par for the course with this type of operation and will happen naturally over the tools life.

 

Nope, sorry, the letters are the same size. What you're seeing is more DEPTH, nothing more.

 

First off thank you for your quote. I personally don't know myself I can only go by what I read. And so far the experts have not determined what causes the difference in the size of the font. And as far as the A and B are concerned, I'm going by what Ken's article says. For which way the font letters are facing. And back to the size of the font letters. I can only say I've only found two of the small font letters, compared to the many large font letters that I have found.

 

Look at the negative spaces in the letters - inside the O and the D. There is only one size.

 

My experience comes from printing part numbers on hydraulic fittings and other small turned parts.
When you stamp a rounded part pressure is imperative. Too little pressure and the stamp does not leave a good impression; too much pressure and you leave a big square (indentation) around the numbers.
There will be three major parts to this tool: The working edge (stamp), a roller and a hinge in between. The roller and the stamp will be held together by a more disposable nut and bolt apparatus.
This nut and bolt does two things: allows the operator to adjust pressure and acts as a failsafe. Ideally, the bolt will break under too much pressure (or age) before the more expensive tooling.
A tools life is pretty tough. It's not easy moving metal. As this tooling makes 1ks of parts the bolt will actually slowly stretch. The operator will then need to tighten the nut on the adjustment bolt a fraction of a turn in order to get it back into tolerance.

I am sure the mint has a specialized million dollar machine for this, but here is an example of a simple tool for applying lettering or texture to the outside diameter of a part (it is missing the adjustment bolt):

 

One question. What if the object in question is not perfectly round. And like the earth is slightly not completely round.? In my experience you will have problems if the object is not perfectly round. Just a thought.