Monometalllic £1 2023

[eurocoin]

A monometallic 1 pound coin was found in an opened bag of new 1 pound coins.

[eurocoin]

A monometallic 1 pound coin was found in an opened bag of new 1 pound coins.

The piece will be auctioned on 18 October by Ryedale Auctioneers.

[FosseWay]

A monometallic 1 pound coin was found in an opened bag of new 1 pound coins.

How does that even happen? The blank implied here should not exist. It's not like normal cases of off-metal errors where an existing blank for a different coin finds its way into the wrong batch.

The £1 blanks do consist of a ring and pill like the £2, right? Or are they selectively plated with nickel to make them look bimetallic?

[<k>]

From Numista:

Composition   Bimetallic: nickel plated nickel brass centre in nickel brass ring

Perhaps the rogue piece is a trial coin that escaped from the Mint.

[FosseWay]

The Numista description certainly strongly implies that the coin is made of two sections, but it's not 100% unambiguous in my view. 

Escaped trials are always a possibility, but I wonder what the purpose of a monometallic trial now (or in 2023) would be? Around the time of the development of the new £1 in 2016, yes, but I can't see why the RM would be trialling alternative compositions now.

[<k>]

Escaped trials are always a possibility, but I wonder what the purpose of a monometallic trial now (or in 2023) would be? Around the time of the development of the new £1 in 2016, yes, but I can't see why the RM would be trialling alternative compositions now.

Trials often carry future dates. But this year is 2024, not the 2023 on the coin.

It is possible that the piece was just a design trial rather than a metal trial.

[andyg]

It does happen, sometimes maybe deliberately,
I have a 20p in aluminium somewhere about.

[eurocoin]

The piece was sold for 1,250 pounds, that is excluding the bidding fee of 30%.