Blueprints on Oilskin of British Submarine K-13, Foundered on her Trial Run ~ 1917 $5000.00 Shipping Included Incredible bit of World War I submarine history, the engineering charts of HMS K13, which foundered on her trial run in 1917 with the loss of several of her crew. These charts rescued by the ship's engineer and brought up through the con and she was going down. Traded to a San Franciso banker in 1933 and in that family all those years. Admiralty stamps and annotations from engineers and ship's personnel who worked on the vessel prior to launch. Six feet long and printed on oilskin. Lovely piece.