Photograph of John Roundy at Basic Magnesium, Inc.   Creator:   Basic Magnesium, Inc. ( Contributing Institution ) Publication Date:   1943-11-26 Type:   Photograph Source Institution:   Henderson District Public Libraries Holding Location:   Henderson District Public Libraries Subject Keyword:   Glass blowing and working Roundy, John Research, Industrial -- Laboratories Men Machinery, supplies, equipment Genre:   Photographs Photograph of John Roundy at Basic Magnesium, Inc.