257 items
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | 1925-10-14 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | 1930-08-08 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Shepps, Vincent C. (Vincent Chester), 1928- |
| Date | 1960 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | 1941-09 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Graeber, Charles Karsner, 1896- |
| Date | 1932-08 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Hughes, H. Herbert (Harry Herbert), 1905- |
| Date | 1927 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Graeber, Charles Karsner, 1896- |
| Date | 1933-06-21 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Graeber, Charles Karsner, 1896- |
| Date | 1933-06-21 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Hughes, H. Herbert (Harry Herbert), 1905- |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Stone, Ralph W. (Ralph Walter), 1876-1964 |
| Date | 1935-10-15 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Shaffner, Marchant N. (Marchant Nissley), 1897-1990 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | 1915 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Hughes, H. Herbert (Harry Herbert), 1905- |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | 1941-09 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Foose, Richard Martin, 1915- |
| Date | 1940-09-05 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | 1925-10-14 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | 1932-04-08 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Sisler, James D. (James Donaldson), 1894- |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Graeber, Charles Karsner, 1896- |
| Date | 1933-07-01 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Graeber, Charles Karsner, 1896- |
| Date | 1933-07-01 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Graeber, Charles Karsner, 1896- |
| Date | 1933-07-01 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Stone, Ralph W. (Ralph Walter), 1876-1964 |
| Date | 1928-06-19 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Moyer, Forrest Theodore, 1906- |
| Date | 1935-04 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Moyer, Forrest Theodore, 1906- |
| Date | 1935-04 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Moseley, John Reed |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Stone, Ralph W. (Ralph Walter), 1876-1964 |
| Date | 1926-09-27 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Stone, Ralph W. (Ralph Walter), 1876-1964 |
| Date | 1926-09-27 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Fraser, Thomas |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |