Unidentified Photographer [Complete destruction of wooden floor (air-space beneath) and telephone switch and relay racks of Hiroshima Telephone Company, Central District Exchange]
Unidentified Photographer ["Shadow" of a hand valve wheel on the painted wall of a gas storage tank; radiant heat instantly burned paint where the heat rays were not obstructed, Hiroshima]
Unidentified Photographer ["Shadow" of a hand valve wheel on the painted wall of a gas storage tank; radiant heat instantly burned paint where the heat rays were not obstructed, Hiroshima]
Unidentified Photographer ["Shadow" of a hand valve wheel on the painted wall of a gas storage tank; radiant heat instantly burned paint where the heat rays were not obstructed, Hiroshima]
