1970s “COAL MINER TODAY” UNDERGROUND COAL MINING INDUSTRY OCCUPATIONS MINE SAFETY JC10084
17:31
“SAFETY IN LONGWALL MINING” 1970S COAL MINE SAFETY TRAINING FILM XD49364
25:55
Hazards of Coal Stockpiling Operations
1:37:57
Underground Brotherhood - Coal Miners in Romania Documentary
25:34
I went INSIDE the last coal MINE in Longyearbyen ︱ Svalbard
6:12
Hazards Coal Identification: Mine Health and Safety Council
16:44
Mining Anthracite at S&J Coal Company
16:16
" TWENTY-FIVE FEET FROM THE FACE " 1970s MESA COAL MINE ROOF BOLTING SAFETY FILM JC10104
9:39