| GWR Lion, Atlas and Eagle | |
| Powertype: | Steam |
| Builder: | Sharp, Roberts & Co. |
| Builddate: | 1838 |
| Totalproduction: | 3 |
| Rebuilddate: | 1844 |
| Numberrebuilt: | 2 (Atlas and Eagle) |
| Serialnumber: | R, S, and T |
| Whytetype: | 2-2-2 2-2-2T (after rebuild) |
| Leadingdiameter: | 3feet |
| Driverdiameter: | 6feet |
| Trailingdiameter: | 3feet |
| Wheelbase: | 13feet |
| Cylindersize: | 14x 14x or 15x (after rebuild) |
| Operator: | Great Western Railway |
| Numinclass: | 3 |
| Withdrawndate: | 1847-1872 |
| Disposition: | Unknown, probably scrapped |
The first 19 locomotives ordered by Isambard Kingdom Brunel for the Great Western Railway included three 2-2-2 Sharp, Roberts locomotives. They were built by Sharp, Roberts and Company and the most successful of the early designs, two lasting until the 1870s.
The original 14x cylinders were replaced from 1844 by larger 14x or 15x ones.
This locomotive was rebuilt as a 2-2-2T tank locomotive in 1860. After it was withdrawn it was sold to a Mr Glasbrook in Swansea.
This locomotive was rebuilt as a 2-2-2T tank locomotive in 1860.