rim error

What is this called? How does it happen?

 

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Looks like a Minor Rim Clip with a Blakesley effect on the opposite side of the clip..The Blakesley effect occurs on most genuine clipped planchet error coins and is characterised by weakness in the rim opposite the clipped end of the coin.

 

It looks like PMD to me.

Chris

 

That was my second thought also especially a coin that's been around for the past 159 years!

 

A numismatist's level of coin making and knowing when to expect flow lines in those broken areas is KEY.

I am leaning to Blakesley Effect. Note how the rim denticles also disappear very nicely. However - Coin in HAND/LOOP, etc... required.

John Lorenzo
Numismatist
United States

 

Isn't the Blakesley Effect a result of a clip? I don't see a clip anywhere.

What I do see is something that appears to have been produced by some type of crimping device. It shows heavily on the obverse at approximately 11 o'clock and on the reverse at approximately 7 o'clock. There are also weaker impressions at approximately 5 o'clock (obverse) and 1 o'clock (reverse).

Chris

 

A very light clip like on a Morgan Dollar that we see sometimes being auction off at like Heritage ... could be post mint damage - but I doubt it. Its a back and forth debate without the coin in hand and a magnifier. I 100% agree ... flow lines MUST be EXITING this area ... as an example.

JPL

 

http://www.error-ref.com/blanking-and-cutting-errors/

See #5

Edge clips are this small ... I would view the flow line diagnostics at the opening - so-to-speak. Still - coin in hand is needed with a magnifier.

 

Not all curved clips are that noticeable. Look at these examples on NGC slabbed Morgans. 1st Picture NOT my coin. 2nd and 3rd Morgans are mine indeed.

 

Small clip, good catch !

 

If it is so slight that it doesn't show any weakness in the strike opposite it, then how can it be considered a clip. No offense paddy, but I'd need authentication by someone else.

That being said, the OP's half dime has, not two, but four indentations. How can anyone explain that?

Chris

 

Not offended at all! But I do understand your question.. I question it also! The pics I posted was just to show an example, not to prove that the original coin was exactly what the morgans are.

 

So, if the clip were small enough, metal could still flow in but it would be a weak impression and the Blakesley effect would still show 180 degrees away?

 

Yes !

 

I see damage from what I think was a jewelry piece.

 

Just to be accurate the Blakesley Effect is not 100% present on all clips for some reason.
I have seen papers and proof on this but certainly with flow lines its two basic tools for this kind of mint error just to make sure its not PMD.

JPL

 

I'm with Paddy, this is a very small rim clip and the blakesley effect IS visible as a weaness in the rim 180 degrees away form the clip.

 

what's the cause of lack in dentical detail on Almost half of the coin? is this related?

 

Its real easy to lose it on this forum.

JPL