Tokyo Tower (東京タワー, officially called 日本電波塔  “Japan Radio Tower”) is a communications and observation tower in the Shiba-koen district, built in 1958. At 332.9 meters (1,092 ft), it is the second-tallest structure in Japan. It’s an Eiffel Tower-inspired lattice tower painted white and international orange to comply with air safety regulations.  And finally we have indirect evidence of the age of this series of unused postcards:  since the tower was built in 1958, these cards must have come very soon afterwards.  Grade: 1