Step into the world of WWI tanks with the Koin Club and start your WWI Tanks Collection with the 'Mark IV' plated in 24-carat gold. The front of the commemorative features the Mark IV, the tank deployed in the first ever tank vs tank battle, in full colour. On the reverse, the official logo of the Tank Museum. This gold edition is officially licensed by the Bovington Tank Museum who, in partnership with The Koin Club, are working to develop the most exciting WWI tank collectables.