English: Details of the later pattern Mercedes D.III valvetrain, using the relocated rocker box design, with rotary shafts to operate the fully-exposed w:roller rocker arms.
Date
Source
British Flight Magazine, June 20, 1918 issue, page 683
Author
Unknown, artist's signature not entirely legible in scan of image.
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Public domainPublic domainfalsefalse
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Public domainPublic domainfalsefalse
This UK artistic or literary work, of which the author is unknown and cannot be ascertained by reasonable enquiry, is in the public domain because it is one of the following:
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).
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