Document O3vKNY2ZvGg33Z8RQ1KjVMZNp

'- - 'o X ENERAL M O TO RS CO RP O RATIO N GEN ERAL MOTORS BUILDING 3044 W EST G R A N D BO U LE V A R D D ET R O I T 2, M I C H I G A N February 11, 1953 Dr. R. A. Kehoe University of Cincinnati College of Medicine Cincinnati 19, Ohio Dear Bob: Can you give me any information on the ill effects to be expected from buffing, polishing or grinding antimony? Do you feel the limit of .05 milligrams per cubic meter is somewhere near right? Do you know of any adverse industrial experience? Since-relv touts. FP/jg Frank A. Patty, Head Industrial Hygiene Dept N 6172