Record Name | Hs_1309-0013-024 |
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Photographer | Unbekannt |
Dating | 23.04.1934 |
Caption | Soffionissimi: Hot steam bubbles drilled under rock by means of derricks with pressures of 1-5 bar and temperatures of 140-230°C. |
Caption (German) | Soffionissimi: Mittels Bohrtürmen unter Fels angebohrte Heissdampfblasen mit Drücken von 1-5 Bar und Temperaturen von 140-230°C |
Physical description | Postkarte |
Format | Spezialmass |
Special size | ohne Angabe |
Colour | schwarz/weiss |
Orientation | Querformat |
Categories |
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License | Public Domain Mark |
Copyright notice | ETH-Bibliothek Zürich, Bildarchiv / Fotograf: Unbekannt / Hs_1309-0013-024 / Public Domain Mark |
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