Stamps: United Nations Org. Image Stanley Gibbons Scott Michel Yvert Tellier Year Face Value Description History 734 758-69 1998 UNESCO. International year of the ocean, New York (sheetlet of 12 stamps)   \ \ \ \ 1998 32 C Submersible, Alvin \ \ 253 \ 1998 3.50 S Submersible, Alvin \ \ 255 \ 1998 3.50 S Submersible, Jacqes Cousteau's Diving Saucer 239 252-63 1998 UNESCO. International year of the ocean, Vienna (sheetlet of 12 stamps)