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Start Over You searched for: Catalog Issue Year Decade 1950 - 1959 Remove constraint Catalog Issue Year Decade: 1950 - 1959 Sudoc Stem I 28.10/2 Remove constraint Sudoc Stem: I 28.10/2

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11. Coal-mine fatalities.

12. Coal-mine fatalities.

13. Coal-mine fatalities.

14. Coal-mine fatalities.

15. Coal-mine fatalities.

16. Coal-mine fatalities.

17. Coal-mine fatalities.

18. Coal-mine fatalities.