HMS M1 Submarine Monitor armed with a single 12-inch Mark IX gun The vessel was lost with all hands on this day a century ago in 1925 after colliding with the Swedish SS Vidar. Posted byDavid Arkwright18/11/202518/11/2025Posted inUncategorizedTags:Blogger, IFTTT https://x.com/i/status/1988509819192606950 from Blogger https://ift.tt/h47YxUbvia IFTTT Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Related