I have a few of the Cincinnati Milacron Tokens but this one is my favourite, as well as probably the rarest.
This piece was struck on one of the Cincinnati presses installed at the Royal Mint in Llantrisant, Wales and set up for the initial striking of the New Decimal Penny production in 1970 ready for release in 1971. The only possible time the die-pairing could have existed is at the Royal Mint, as the ‘Britannia Moneta’ dies are never allowed to leave the facility; the Cincinnati die would have been brought in to the Mint, used to set up the press and demonstrate that the die was correctly set, as part of the commissioning process, then removed from the site when Cincinnati’s engineers left