General
Inventory list
Identifier
|
Title | Level of description | Date | Digital object | |
|---|---|---|---|---|---|
| G.X 11/1/30 | Coal Production - Production Trends - Investment and Development in Coal Industries | File | 1973.02-1974.12 | ||
| G.X 11/1/32 | Coal Production - European Coal Situation between the two World Wars | File | 1949.08-1949.10 | ||
| G.X 11/1/34 | Coal Production - Classification of European Coal - Analysis of Samples | File | 1949.03-1950.12 | ||
| G.X 11/1/34 | Coal Production - Classification of European Coal - Analysis of Samples | File | 1950.11-1952.07 | ||
| G.X 11/1/35 | Coal Production - International Ruhr Authority | File | 1950.02-1953.02 |