2 FOOT SOLAR COLLECTOR - NARA - 17441623.jpg
en
2 FOOT SOLAR COLLECTOR NARA 17441623, US National Archives series: Photographs Relating to Agency Activities, Facilities and Personnel, Images from the National Archives and Records Administration, US National Archives location: other, 2 FOOT SOLAR COLLECTOR
commons
ja
2FOOT SOLECTOR NARA 17441623、米国国立公文書館シリーズ:活動・施設・人事に関連する写真、米国国立公文書記録管理局の画像、米国国立公文書館の位置:その他、2FOOT SOLAR COLLECTOR
commons_translated
collector slip ring web-footed reflectorize cat's foot swivel thereof