Swimmer Delivery Vehicle (SDV): Submarines have operated with special operations teams since the days of WWII with Underwater Demolition Teams (UDT), commonly known as "SEALs" (Sea-Air-Land) are used in a variety of clandestine operations. Carried in a special watertight tank "piggybacked" to a submarine, the SDV gives the SEAL team a greater range of stealth, mobility and endurance.
Evening ensemble with matching bonnet, French, c. 1890 silk velvet tambour embroidered in rose blossom pattern, gold beadwork on cloth of gold collar & bodice appliques, stamped 'A. Felix Brevete 15 Faub. St. Honore Paris', Augusta Auctions