c  (1947)  . . . in the evening the drum is beat upon the works to give notice the trading room is going to be shut. . . .
1848  Thus an Indian arrives at a fort with a bundle of furs, with which he proceeds to the Indian trading-room.
1921  If, in spite of all these precautions, the Indians either in the trading room or Indian room grew so violent as to be really dangerous, the traders could fire down upon them from loopholes in the ceiling.
1964  Completed phases include . . . Rocky Mountain House stockade (the trading room will also be built this year).