View of the Messel oil shale works, in 1933.
Messel Mine, Messel, Darmstadt-Dieburg, Darmstadt, Hesse, Germany
The Messel mine open pit showing the working area, with plane sliding surface (middle), in 1933. Vintage photo print Figure 221 in book:
A. Riebeck’sche Montanwerke. Die Geschichte einer Mitteldeutschen Bergwerksgesellschaft.
Editor P. Franke, Halle (Saale), Verlag F. Bruckmann A.G., München, 1933, 445 pages.
The Messel mine at that time ...
© Riebeck'sche Montanwerke, Halle.