Royal Mint. Two Pounds. Unstruck blank.
£75.00
This is a Bi-Metallic 2 pound piece blank (both sides, other coin for reference) that was found in circulation. Its not a striking error as this example didn't go through any part of the minting process. Its possible that it was a test piece for use in vending machines, etc that wasn't returned.
Correct size and weight (12g). A rare item.
NB. Coin blanks, like everything else, are available from China. They look nothing like this one. Examples can be seen following the link below.
https://www.alibaba.com/product-detail/wholesale-custom-28mm-32mm-38mm-two_1600220147946.html