Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The ten examples of this class were designed by Patrick Stirling for the GSWR and were built by R & W Hawthorn (Works Nos. 1034-43) between July 1858 and January 1859. They were numbered 34, 36, 32, 25, 110–115.
The members of the class were fitted with domelessboilers and safety valves over the firebox.
Withdrawal
The locomotives were withdrawn by James Stirling between 1874 and 1876.
References
Baxter, Bertram (1984). British locomotive catalogue 1825-1923. Vol. 4. Buxton: Moorland Publishing. p. 140.