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Robert Prohaska
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YearOperation NameNumberTypeOpeningDistrictCityCountyCompany NameRailroad Shipments (tons)Railroad to MineTruck Shipments (tons)Total Production (tons)Days WorkedEmployeesNotes
1938 Prohaska Mine12Plymouth 1LuzerneRobert Prohaska002,2241236Lessee, part of Lance Colliery. Coal shipped run of mine to Kingston No. 4 Breaker.
1939 Prohaska Mine12Plymouth 1LuzerneRobert Prohaska00156175Lessee, part of Lance Colliery. Coal shipped run of mine to Kingston No. 2 Breaker.

Note 1: Added, does not appear in the mine inspection report.