1960. Oklahoma centennial During Oklahoma's 50th anniversary, a new 1957 Plymouth Belvedere was sealed in a concrete enclosure as a time capsule in downtown Tulsa on the grounds of the brand new county courthouse. It was unearthed June 14, 2007, during the state's centennial celebrations, and was publicly unveiled on June 15. In line with the Cold War realities of late 1950s America, the concrete enclosure was advertised as having been built to withstand a nuclear attack. The concrete enclosure, however, was not airtight and allowed water to leak in, which caused significant damage to the vehicle. The controversial televised vehicle customizer Boyd Coddington was to have been the first to start the unburied car, had it been operable. The car was the prize of a 1957 contest to guess the population of Tulsa in the year 2007. The winning entrant, Raymond Humbertson, guessed 384,743 versus the actual figure of 382,457. However, Humbertson died in 1979 and now only distant relatives remain. A second car, this time a Plymouth Prowler, was encased in a vault in Tulsa's Centennial Park (formerly Central Park) in 1998 to celebrate the city's centennial. After it was discovered what had become of the 1957 Belvedere, the Prowler was moved above ground, and a mound was formed over it. It is to be revealed after the same period of time as the Belvedere, in 2048. Notes External links Allpar: Plymouth Satellite, Plymouth GTX, and Plymouth Belvedere View the Unburied Plymouth Belvedere Plymouth Belvedere in television and film Plymouth sales brochures at www.oldcarbrochures.com Members cars, page 3, The WPC Club "Plymouth Combination Station Wagon And Utility Vehicle" Popular Mechanics, July 1949 Belvedere Cars introduced in 1954 1960s cars 1970s cars Convertibles Coupés Full-size vehicles Mid-size cars Police vehicles Rear-wheel-drive vehicles Sedans Station wagons