Collection search - Materials and supplies - Fuel - Coal classification - Coal table chart giving rank, grade, burning characteristics, fusing, temperature of ash, heat value and constituents of the coal of the United States
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Materials and supplies - Fuel - Coal classification - Coal table chart giving rank, grade, burning characteristics, fusing, temperature of ash, heat value and constituents of the coal of the United States
Hierarchical level:FileDate:1921Reference:RG30-A-9-d, Volume number: 10061, File number: 5605-24File no. (creator):5605-24Type of material:Textual materialFound in:Archives / Collections and FondsItem ID number:1534151Context of this record: -
Record information – Details Date(s):1921Place of creation:No place, unknown, or undeterminedLanguage of material:UndeterminedFinding aid no.:Source:GovernmentFormer archival reference no.: -
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