Tags: Locomotive.
The South Eastern Railway (SER) O Class (some of which were later rebuilt becoming the O1 Class) was a class of 0-6-0 steam locomotive designed for freight work and were the main freight engines of the SER and later the South Eastern and Chatham Railway (SECR) for a number of years. However they were displaced by the more powerful C class locomotives following the amalgamation of the South Eastern Railway and London Chatham and Dover Railway (LCDR) in 1899.
