Great Brittain Errors, Input Appreciated

I've been organizing my world type coins and made it to the United Kingdom. I've got three coins that I could use your input on. I'm trying to learn about errors; what causes them, and what their names are. Please see below.

#1. Penny, 1919 KM810. Strong reverse die clash, but nothing on the obverse. Any idea how only one side clashes like that?

#2. Penny 1997 KM 935A Some sort of excess metal pooling in it prior to strike? I don't see any dents or reason for excess metal. What do you think this is attributed to? #3. 5 Pence 2012, KM# 1109D, This is a strange one. It looks like excess metal on her crown, forehead, neck, and lips/throat. The reverse shows nothing out of the ordinary. I have three of these and the other two show none of the excess metal. What would this one be called and how do you suppose this happened?

 

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Please forgive the typo in the title of the post. I double hit the T and can't remove it now!

 

As a British collector, I have not the faintest idea. We are really not all that interested in minor manufacturing glitches because we all know that any mechanical process makes mistakes and tend to ignore them. They have no numismatic significance, they are just a hiccup in the machinery,and add no beauty or desirability to a coin. An error is by definition worse than the intended product and a gentleman ignores them.

 

The Penny with the impression of George V`s head on the reverse is known as Ghosting, it is very common and not an error.
This guy explains it better than me.
http://www.predecimal.com/forum/topic/6293-george-v-reverse-ghosting/

The other coins are not errors.

 

Thanks, but how do you explain #2 having the H stamped over the chunk of excess metal? And what would you say caused what happened on #3?

 

Hello, as a welsh collector of all coins American and British the fact that minor flaws in coins can create such an interest .
There are collectors in the world that do appreciate the errors that maybe caused by mechanical failure or just human "error".
I have found that over the last 40 years ,currency being minted in home land llantrisant mint have put quantity over quality .So only recently the mint has taken an interest to any coin with any flaw carrying our good queens head on it.
By right she is our Queen and what we have and still do carry in our pockets should be a perfect resemblance of the value and state the country is in. More time taken in quality control , looking after what we have and getting that right should be a priority.
A gentleman should by definition bring to others issues that pleases the rest. Not turn a blind eye and sweep under the carpet ,act as if cockups never happened.llantrisant mint are working to build a reputation throughout the world maybe borrowing the philosophy of the American mints would enhance that once more.
I will continue to collect and bring any errors found on our coin / currency to the attention of the mint.
1. Because it shouldn't happen!
2. Because I like them they interest me.
3. A question asked is a problem solved.
For the Op not a rant mate I love the coins, for years British collectors have been brushing these coins under the carpet , with no interest .
I can tell you that there are collectors here with so much knowledge and admiration for any coin that's "Flawed"

 

The cent appears to have a slight opening on the rim, I believe this is copper over zinc and this is zinc rot.

The other appears to be a die break with die chips IMO and looks very cool.

 

Under your title look for Thread Tools - It looks like this





Open it up and you can make changes on your title

 

Well said frog eye73..All mints aim for perfection and are always looking how to improve quality control.
If a coin is not perfect then im sure it would be an interest to someone.
Personally,I collect the weird unwanted wonderful,whether they be error's or not,they definitely are not perfect.
I like the coins pictured above,others may not,and as to " brush them under the carpet "..I would rather share them with fellow coin collectors and make them available to collectors who would appreciate them.
If they are not perfect, maybe they're unique in they're own individual way and would be liked by some more than others.[emoji106]

 

The "Cent" is a "Penny" it is copper plated steel, so obviously some of the plating has been removed causing the steel to rust and bubble, PMD IMO.
The chips on the 5 Pence are caused by collapsed dies, again very common in pocket change.
I am unaware of any UK collectors that specialise in minor manufacturing errors on British coins.
I have a "No Date" 20 Pence, recent known error and even that has chips around QEII`s nose , chin and crown.
This is about the only obvious error that attracts a premium, they realise about £50 with or without the chips.

I might add this coin is known as a mule rather than an error as it has the reverse and obverse from two different design coins.

 

I actually appreciate the input good Sir. The question I have is are you returning these coins to the mint or simply showing them the coins? Also, what is the mint's response?

 

I think you're correct on the rot; I see the crack where water might have gotten in. I wonder if that crack happened during mintage?

 

Really cool coin! I hope to own a mule one day in my small error collection.

 

My only option is "ignore thread" am I missing something?

 

That is so weird. I know that if you go on another members thread you can't see the Change Title. But if you are on your own it should be there! I have changed my title a few times using that tool.

 

I also think that it's a form of Zinc Rot like it happens on US coins. The coin was milled and that area with the H raised up. I have seen it on other coins, The clad layer can come off a coin at times. Check out the Obverse layer I found once metal detecting on a beach.
It belonged to a Argentina 1 PESO as shown in last pics

 

I hope it is alright to add this to this thread...it looks like some people here know something about Great Brittan One Penny’s. Someone gave this coin to me and I don’t know much about it. The date is 1861 and it has several re-punched letters, misplaced last one of date, the LCW initials, and the sea extended past the ring...maybe a rare variety? If so, how would be the best way to sell it, and what might be a value?
Thank You,
Larry Nienaber

 

I've sent numerous coins to the mint , the options are as follows , to replace equal to value.
To return back to sender once the team there has inspected and made a report . Which could take months.
My answer was to wait for one response.
Gather as much information about the minting process and determine for myself with lots of comparisons what the outcome is. The point being they aknowleged them as imperfections. I was happy to get them back. Somebody there took the time.
I had answers.

 

I admire your dedication.