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OK, this one is just unser 2mm. It doesn't look like damage. I'll try to get pics. Possible it could be a magicians gimmick coin? One that fits inside another coin or something. It's size is that of a normal 3d though, just under 2 mm thick.

Me with also trouble basic English syntax am having.

QEII Lighthouses David, in "The Identification of British 20th Century Bronze Coin Varieties" 1967 Penny Mentions page 117 2. "that on a small percentage of specimens, the lighthouse is thicker, particularly at the top" & 1965 Penny Mentions page 116 "4. There are reports of the lighthouse having nearly a square upper section" I've looked but, I don't think book contains an illustration of the lighthouse types (I have said to David if he is ever able to issue a updated version I'll be as close to the front as I can get, in the long queue to buy a copy) I wondered if I've found an example from 1967. The "Normal" type is on the right and possibly the left hand example is the thicker type (not sure if its a "square" at the top) Look forward to your thoughts Best Regards

If the die iswhole, and held in a collar, there can only be one axis of rotation, the centre. All details will be affected, and all doubling will show the direction of die rotation to the same extent. This is not what is happening to this 1967 date. The doubling of the 6 is on the die!!!!!!!!!!

It is from the die [skip] rotating about an axial radius and can affect other areas depending on the axis.

I still don't get it. If the die moves, all the coin is affected. If the die is held and can only rotate, then the effect is geater near the edge. Surely this is the case? So a doubling of just the date can't be down to the die moving- the doubling is already on the die...?????

I've also heard it called "die chatter".

I think some have called that "skip" with the die slipping on strike...Something of that sort...Comes with a shelf-like appearance at the date and occasionally other devices.

Indeed, as have I. However, the mint did "flub" on occasion and struck coins on thinner planchets. I bought a bunch of them as a lot from London Coins about 10 years ago. Have a few others and thrown in were some off metal strikes and off center, etc.

Would need to see a picture. An awful lot of so called "thin flan" 20thC coinage is post mint damage/tampering as the coins have been submerged in acid either deliberately or else in acidic soil conditions before being discovered as detector finds. I myself have unearthed many such pieces. The giveaway signs are that the surfaces are mottled, stippled or porous where the acid has eaten away constituent parts of the metal alloy. If the surfaces are anything different from a normal circulation piece, then I would fear that is what you have...

I'll have to check as he has it back. I think its a little thinner still.

Interesting. I had never come across other thin flan 3ds. I have a very thin 1944 3d. The normal 3d is 2.69-2.72mm with a vernier caliper. The thin 3d is 2.14-2.16mm.How thin is the 1956?

Another coin collector had a Looking at this, the verdict........ "it looks like an Edward IV 1st Reign groat of the Light Coinage issue (1464-70). No marks at neck, mint mark crown on the obverse. London mint." 🎉 Happy Happy Happy!!!!

Hi there, my friend asked me to check out his 1956 3d coin that has a really thin flan. I looked this up but could only find the thin flan 3d from Gurnsey from 1956. His coin is not the Guernsey one but looks like the normal 1956 3d brass coin but with a thin flan. Anyone seen this coin before? Maybe I didn't search hard enough But all I could find reference to was the Gurnsey variety. Thanks in advance for any information. DrP

It's always good to learn. We all do, albeit mostly through mistakes, not having gone to the effort of preparing ourselves adequately for the items in question. It is always helpful to acquire a few higher grade items in your areas of interest as well as being cleanly and clearly struck. If correctly identified, then you can use those as a reference for the various design features you need to check to drill down into the sub-type. Don't be afraid of spending decent money on a good coin. It doesn't suddenly become a 50p lucky dip item worth nothing just because you paid more than you normally would.

Thank you for update.

I sent an email to the developers and they said there were many issues with Invision forums and listed a whole range of the causes - one of them was the rich text issue which you fixed, but there were several others some of which were very technical and beyond my understanding! However, they did suggest trying another browser, so I went back to my Chromium browser for predec (I also use it for banking as it doesn't involve the very irritating 2FA thing where you have to get a 6 digit code on your phone).

The last time I looked the earlier coins with the same error were about £5-£10 I think. Perhaps someone will pay a little more for a very new one, in case there aren't as many like that as usual (which I doubt, it seems to happen a lot on the new shape £1 coins).

Hi, I wondered if anyone had any example of single digit date repairs for the 1961 - 67 Pennies for example a repair only on the 9 or 6 ? I seem to be only finding doubling. Just starting 1967 and have two different examples. Both reverses of which have slightly doubling on Britannia on the wrist of the hand holding the trident and the lower arm of the hand holding the shield. Best Regards

Just curious if anyone is interested. In a 2025 £1 could with error. Is there any value to it?

Isn't it nice that we have someone on here with some nice inherited coins lol

Hah, I honestly didn’t mind, Chris…gave me my biggest smile of the day so far. 😆