The description below is taken from the Airfix catalogue this kit was first seen in. There may also be extra information underneath the main description.

Airfix Catalogue description:

This smaller version of the Saddle Tank locomotive was designed for use in shunting yards. It is reproduced with a wealth of detail and in true scale from this excellent 44-part kit. Working model complete with B.R. transfers.

- From 3rd Edition (1964)

Airfix Catalogue information:
Series: 1
First Issued: 1964
Catalogue Ref - 3rd Edition (1964): R9
Catalogue Ref - 4th Edition (1966): R9
Catalogue Ref - 5th Edition (1967): R9
Catalogue Ref - 6th Edition (1968): R9
Catalogue Ref - 7th Edition (1969): R9
Catalogue Ref - 8th Edition (1970): R9
Catalogue Ref - 9th Edition (1971): R9
Catalogue Ref - 10th Edition (1973): 02660-2
Catalogue Ref - 11th Edition (1974): 02660-2
Catalogue Ref - 12th Edition (1975): 02660-2
Catalogue Ref - 13th Edition (1976): 02660-2
Catalogue Ref - 14th Edition (1977): 02660-2
Catalogue Ref - 15th Edition (1978): 02660-2
Catalogue Ref - 17th Edition (1980): 02660-2