HANDTOOLS (NONPOWERED) at Rosebud Mining Company
while helping the mechanic ee was swinging a 5lb sledge when he slipped twisting his lower extremity, ee did not want to go to have checked until 3 days later. upon ee was diag.with a torn ligament in his back and l3,l4,l5 s1 ruptured
U.S. Mine Safety and Health Administration