Sammy the Shunter is a fictitious steam locomotive

Steam locomotive

A steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...

 created by Eileen Gibb, featuring in a series of children's books published in the 1940s and 1950s.

Description

Sammy the Shunter is a 2-4-2

2-4-2

Under the Whyte notation for the classification of steam locomotives, 2-4-2 represents the wheel arrangement of two leading wheels on one axle, four powered and coupled driving wheels on two axles, and two trailing wheels on one axle...

T locomotive, painted red with green wheels and a yellow dome. The various books tell of Sammy's adventures all over the world. Sammy seems to be more widely travelled than Thomas the Tank Engine

Thomas the Tank Engine

Thomas the Tank Engine is a fictional steam locomotive in The Railway Series books by the Reverend Wilbert Awdry and his son, Christopher. He became the most popular character in the series, and the accompanying television spin-off series, Thomas and Friends.Thomas is a tank engine, painted blue...

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Characters

• Sammy is the main character thoughout the books. He is a 2-4-2T steam shunter painted red with green wheels, yellow buffers, blue running plate and yellow lining with his nameplate on his sides in yellow. Sammy is a friendly engine who has a dislike towards shunting. In the first book, Sammy used to be a rusty colour and had a number 109846.
• Mr. Buffin is Sammy's driver. He is a kind old man who is seen with Sammy on his adventures. It is mentioned in "Sammy Gets Streamlined" that he was ment to drive the Flying Scotsman
  Flying Scotsman (train)
  The Flying Scotsman is an express passenger train service that has been running between London and Edinburgh—the capitals of England and Scotland respectively—since 1862...
  
  but everything had all gone wrong.
• Mr. Plum is the stationmaster of Sleeping Sunbury station. He is an unfriendly man with a short temper, but has a soft spot as seen in "Sammy Goes To School".

Books

Sammy the Shunter appears in various books.
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Sammy the Shunter also appears in the stories "The Holiday Train" and "Sammy on the Christmas Tree, featured in:-