Compound engines of the White Star steamship Britannic (Maudslay, Sons and Field Engineers, dated 1876)
Image file from <a rel="nofollow" class="external text" href="http://www.gracesguide.co.uk/wiki/Main_Page">Grace's Guide</a> (Website content is free to copy, distribute and/or modify under the terms of the GNU Free Documentation Licence, Version 1.2 or any later version published by the Free Software Foundation)
<a rel="nofollow" class="external text" href="http://www.gracesguide.co.uk/File:Im1876EnV42-p294.jpg#filelinks">Im1876EnV42-p294.jpg</a> from <a rel="nofollow" class="external text" href="http://www.gracesguide.co.uk/Maudslay,_Sons_and_Field">Maudslay, Sons and Field</a> at <a rel="nofollow" class="external text" href="http://www.gracesguide.co.uk/wiki/Main_Page">Grace's Guide</a>. Image over 100 years old, original source unknown.