Celebrate a century of British Submarine history with our selection of stunning commemoratives that pay tribute to the true Assassins of the Deep. The Holland 1 was the very first submarine commissioned by the Royal Navy in 1901 and successfully combined the electric motor, electric battery and internal combustion engine. The 24-carat gold plated commemorative shows the engraving of the iconic submarine, the obverse features the official Royal Navy Submarine Service logo in full colour.