1p Die Stamped Into A 2p Coin

Incredible find! Congrats! Be patient, the experts here will be weighing in shortly...

PMD.

The coins were pressed together in a vice or hit with a hammer. Post-mint damage.

another clue that this is a vise/hammer job is that it is out of round.

Good thinking, Sap!

Sorry, but the OP's coin shows every single characteristic of a "hammer job" or "vise job", and not an actual mint error:
- Backwards-incuse lettering, meaning that a second actual coin did the impression, not a coin die;
- A flattened area on the other side of the coin, indicating the coin was not sitting in the die when the damage happened. IN other words, the 2p coin was originally a perfectly normal 2p coin, before the 1p coin hit it;
- the coin is bent and twisted out of round, proving that the coin was not in the collar die when it happened.

It is literally impossible for a coin to come out of the coining press looking like this; it is unavoidable that such an item can only be made from two perfectly normal coins being squeezed together. By hammer, vice, or by the heavy piece of furniture I mentioned in my previous post.