(Walt Disney World, 1971) A porthole from one of the Nautilus submarines in the Magic Kingdom's 20,000 Leagues Under the Sea: Submarine Voyage attraction. From 1971 until 1996 Guests enjoyed viewing the underwater scenes of the attraction through this porthole. Measuring 15.25” in diameter and 2.75” thick, the porthole is composed of glass and metal, and displays in very good condition with wear from Park use, residue on the edges from removal, and brown paint spackled on the glass for display.