Hedley's 0-8-0 Wylam locomotive, 1813
Nicholas Wood
A practical treatise on rail-roads, 1825, Plate 6. (found online at <a rel="nofollow" class="external text" href="http://lhldigital.lindahall.org/cdm/singleitem/collection/railroad/id/49/rec/4">lhldigital.lindahall.org</a>)