A contact sheet depicting film strips of various engines from the TV series was sold on the auctioneering website in the US for $24.99.
The collection of photos shows various measurement angles of engines introduced in the Fourth Series.
Some of the photos suggest utilisations for the 2004 to 2009 era of the official Thomas website's Engine Depot page.
The listing described it as a very rare and unique 22" x 16.5" (approx) contact sheet highlighting many of the models used in the hit TV show Thomas & Friends. Printed on Kodak paper.
Thanks to Daniel Coffey for the alert.