Researchers use lead shield in radiation dust experiment at UCLA's Atomic Energy Project

Man in lab coat and wearing gloves seated at desk takes liquid from glass jar with pipette and put some liquid in small bowl, stirs contents of bowl, pours another liquid into small beaker, takes liquid from small bowl with pipette and puts into three petri dishes / CU petri dishes on paper towel / man at desk writes in journal, then opens door to lead shield apparatus and removes tray, puts petri dish in tray and puts it into apparatus, adjusts levers and dials on another apparatus and writes in journal / CU apparatus with label on it that reads "Lead Shield Manufactured for The Atomic Energy Commission, Technical Associated Glendale California," door opens and gloved hand places tray with petri dish on shelf in apparatus and closes door / Note: exact year not known; documentation incomplete