1948 cover from Tientsin to London with three 50.00 and two 20 (overprinted) stamps tied by TIENTSIN cancels. The cover has been in a water related incident, - probably ship – and has, on the front, a boxed violet ‘DAMAGED / BY / SEA WATER’ cachet. Hoggarth & Gwynn, in their book Maritime Disaster Mail, mention one other cover known from this incident that came from Shanghai, posted on March 16 1948. Scarce and interesting!!