Description
With the start of mining on hard coal, numerous deep drillings were phased out in the Hammer city area. About 260 of these are included in this file — mostly with names, year and name.
Resources
| Name | Format | Description | Link |
|---|
With the start of mining on hard coal, numerous deep drillings were phased out in the Hammer city area. About 260 of these are included in this file — mostly with names, year and name.
| Name | Format | Description | Link |
|---|