Photo: Sign explaining the bell signals and the steam-driven hauling machine in the machinery hall at Fuerst Leopold (see Bergbau-Verein Dorsten)
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There's an elaborate system of bell signals which are used for communication between the hoistmen and the workers in the mine.

This bell system specifies the communication channels between me and the outside world.
Address |
Fuerst-Leopold-Platz 1
Lohnhalle, 3rd floor (2. OG), room 2L-14/15
D-46284 Dorsten
Germany
Postal address |
Michael Holtkamp
Fuerst-Leopold-Platz 1
D-46284 Dorsten
Germany
Phone |
Fax |
Website |
Mastodon |
ResearchGate |
Skype |
SoundCloud |
Graukaue

This is my podcast.
Website |
Fyyd |
Mastodon |
Skype |
SoundCloud |
Spotify |
YouTube |
Micha Manfrass

He’s my alter ego.
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