Rhymney Railway A class Construction Construction

| Year_ | RR_class | RR_Nos_ | Builder | Builder_Nos_ | GWR_BR_Nos_ |
|---|---|---|---|---|---|
| 1910 | A | 10–14 | Robert Stephenson & Co. | 3387–3391 | 52–56 |
| 1910 | A | 115–119 | Robert Stephenson & Co. | 3392–3396 | 71–75 |
| 1911 | A | 15, 18–22 | Hudswell Clarke | 946–951 | 57–62 |
| 1914 | A1 | 23–25 | Hudswell Clarke | 1063–1065 | 63–65 |
| 1916 | A1 | 26–27 | Hudswell Clarke | 1119–1120 | 66–67 |
| 1918 | A1 | 28–30 | Robert Stephenson & Co. | 3660–3662 | 68–70 |