CONCRETE DUST ON VARIABLE FREG - DRILLING HOLES - NARA - 17418947.jpg
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CONCRETE DUST ON VARIABLE FREG DRILLING HOLES NARA 17418947, 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, CONCRETE DUST ON VARIABLE FREG - DRILLING HOLES
commons
ja
国立公文書館所蔵:ほか、国立公文書館所蔵:ほか、国立国会図書館蔵本-
commons_translated
drill site variable assignable scalar drilling