16 porcelain enamel panels · All Facts

16 porcelain enamel panels
Behind Mount Rushmore sits an unfinished Hall of Records; in 1998 a sealed vault with 16 porcelain enamel panels documenting the memorial was placed in the hall floor.
SrcNational Park Service — Hall of Records

Next evidence →55 languagesEach Voyager Golden Record carries greetings in 55 languages, natural sounds, music, and a printed message from President Carter — selected for NASA by a Carl Sagan–led committee.

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