Advancements in steam technology at the time - such as superheaters and Walschaerts and Baker-style valve gear - boosted the Pacifics' value. How valued were these locomotives? It's estimated in ...

Over the last decade, No. 7 has proven to be a reliable locomotive, suffering only one major failure in December 2018 due to a lack of lubrication, causing a section of the valve gear on the driver's ...