the outer wall made of stone and mortar. The building was three stories high and contained multiple windows, with a five-story central stair hall capped by an oval copper dome
The hall served many purposes, such as a place to collect and display products from Hiroshima Prefecture and other prefectures, to carry out consultation and research regarding commerce and industry,
he hall’s purpose was directed away from promotional activities, and the hall came to be used as an office for public agencies and control unions such as the Interior Ministry’s Chugoku-Shikoku Public Works Office and the Hiroshima District Lumber Control Corporation.
Now,the dome is a remembrance for the day the bomb was dropped