1931
Annual Report on Mining Activities
1931 Anthracite Coal Mining Activities
Anthracite Coal
1931 Anthracite Annual Report Summary by District [Adobe pdf - 1,318Kb]
1931 Anthracite Annual Report Districts 1 - 11 [Adobe pdf - 8,007Kb]
1931 Anthracite Annual Report Districts 12 - 25 [Adobe pdf - 8,015Kb]