I've been told the Poulton & Wyre RPS website says that they purchased a four-seat Geismar trolley c5/18 from Network Rail at auction from Whitemoor. They moved it to their base at Hillhouse Business Park at Thornton, Lancashire where it is to be restored for use on their line in the future. Not sure which one this might be... the website suggests it was originally used in Crewe:
www.pwrs.org
Annoyingly the photo links don't seem to work.