1. Correct posture for using dustpan and brush Collection: Human Ecology Historical Photographs Set: Departments and Divisions Household Economics and Management Date: 1920 Format: Image
2. Correct standing posture for holding broom and sweeping Collection: Human Ecology Historical Photographs Set: Departments and Divisions Household Economics and Management Date: 1921-1926 Format: Image Photographer: Troy, J. P. (John Patrick)