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1by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
Published 1934
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2by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
Published 1934
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3by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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4by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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5by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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6by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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7by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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8by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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9by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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10by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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11by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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12by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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13by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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14by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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15by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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16by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
Published 1934
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17by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
Published 1934
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18by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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19by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
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20by United States. Works Progress Administration of Pennsylvania.Subjects: “...Bituminous coal--Pennsylvania--Maps...”
Published 1934
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