Magazine <i>The Engineer</i>, issue of December 20, 1867. page <i>Locomotive exhibits at Paris</i> with engravings of steam locomotives exhibited at the <a href="https://en.wikipedia.org/wiki/Exposition_Universelle_(1867)" class="extiw" title="w:Exposition Universelle (1867)">International Exposition of 1867</a> in Paris. The engraving has the title <i>Passenger Engine for the Paris and Orleans Railway constructed at Ivry Works</i>
Unknown author<span style="display: none;">Unknown author</span>, top engraving has the marks <i>Swain</i> and <i>Cole</i>
1867-12-20
<i>The Engineer</i>. 1867: Vol 24. p. 517 <a rel="nofollow" class="external text" href="https://archive.org/details/sim_engineer_july-5-december-27-1867_24/page/517/mode/1up">archive.org</a>