Laszlo Benzar
Hello everybody.
I have this coin a combined(pressed together) and it is very interesting one. The base is a brass-nickel three pence from 1940 and the insert is a silver three pence from 1937. They are pressed together the silver into the brass one as it is smaller from the reverse side of the coin, like it is a bi-metal coin only it is not visible on the obverse. The head of George the VI is untarnished and seems to be flawless.
I cannot identify this coin, however I have searched after any information in a lot of places. The total weight of the coin is 6.73gr. Individually should be Brass 6.8gr and Silver 1.41gr.
I assume the middle of the brass one was hollowed out precisely and the other one pressed inside the centre of it. It was done very precisely, no marks on it's edges anywhere, no marks on the obverse or reverse either, like it was done professionally or by the mint.
Can anyone of our specialists identify or evaluate?


You say you can’t identify this coin, but you have identified the two coins it is made from… two 3p coins from 1937 & 1940 pressed together. So you have identified the coin(s), there was no such coin (singular) minted. Why someone would do this, I would guess, to signify the transition of the 3p from the small round silver one to the 12 sided brass one.
An almost side on image would be nice, to see how precise the craftsmanship actually is. From a vertical image, you could have easily laid one on top of the other! Not saying you have, so don’t take offence. As for how, well if I had a industrial drill which could machine out the exact depth and width of the silver 3p in the middle of the brass one it would be easy to do, and I expect that is how it was done.
As for value, if you could take two ordinary coins that don’t cost much, spend a little time and effort placing one inside the other, and then sell it for a massive profit, you really would have found the golden ticket. It is however now considered Post Mint Damage, and won’t add any value to either coin as it has no historical significance. If the British Mint had done this, then it would be historically significant, but they haven’t, so it isn’t. Maybe in 200 years when such coins are not easily available to find and put together it might be worth more than a ham sandwich…
„If your reply or post in the Forum stinks of AI, I will call you out! Knowledge comes from experience, the I in AI stands for incompetence.“