Engine 10000 (Wonder Book of Engineering Wonders, 1931)
- A photograph, which has never previously been made available to the public (e.g. by publication or display at an exhibition) and which was taken more than 70 years ago (before 1 January 1954); or
- A photograph, which was made available to the public (e.g. by publication or display at an exhibition) more than 70 years ago (before 1 January 1954); or
- An artistic work other than a photograph (e.g. a painting), or a literary work, which was made available to the public (e.g. by publication or display at an exhibition) more than 70 years ago (before 1 January 1954).
This tag can be used only when the author cannot be ascertained by reasonable enquiry. If you wish to rely on it, please specify in the image description the research you have carried out to find who the author was. The above is all subject to any overriding publication right which may exist. In practice, publication right will often override the first of the bullet points listed.
Unpublished anonymous paintings remain in copyright until at least 1 January 2040. This tag does not apply to engravings or musical works. More informationRelevante Bilder
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HochdrucklokomotiveHochdrucklokomotiven, auch Hochdruck-Dampflokomotiven genannt, sind Dampflokomotiven, die mit einem Kesseldruck über 25 bar betrieben wurden. Von dieser Sonderbauart wurden zwischen 1925 und 1954 weltweit zu Versuchszwecken 24 Lokomotiven gebaut. Die komplizierte Technik versprach einen besseren Wirkungsgrad, wurde aber wegen der Weltwirtschaftskrise und dem Zweiten Weltkrieg nur langsam entwickelt, bis sie durch die Einführung von elektrischen und Diesellokomotiven überholt war. .. weiterlesen