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Kowa prototype
Built by a Japanese astronome in 1959 and 1962
(2 copies)
- 1959: Mikawa-Miya planetarium, Gamagori, Aichi, Japan (closed in 1970)
- 1962: Hamamatsu City Musem, Hamamatsu, Shizuoka, Japan (closed in 1986)
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Built by a Japanese astronome in 1959 and 1962
(2 copies)
- 1959: Mikawa-Miya planetarium, Gamagori, Aichi, Japan (closed in 1970)
- 1962: Hamamatsu City Musem, Hamamatsu, Shizuoka, Japan (closed in 1986)