HMS M1 Submarine Monitor armed with a single 12-inch Mark IX gunThe vessel was lost with all hands #otd a century ago in 1925 after colliding with the Swedish SS Vidar.

Town-class destroyer HMS Ripley with the pennant number G79.Originally built for the US Navy as the Clemson-class destroyer USS Shubrick (DD-268), the ship was transferred to the Royal Navy in 1940 as part of the Destroyers for Bases Agreement.