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Number and Name	Class	Wheels Gauge	Builder Works No/Year built	Notes/Location
"Charon"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 25/1840	Great Western Rly, sold to Metropolitan board of works June 1878 as a pumping engine after running 269258 miles.  Close © Kris Ward MMXXVI Charon (Fenton, Murray and Jackson 25/1840) Representative photo
"Cyclops"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 26/1840	Great Western Rly, withdrawn July 1870 ran 444269 miles.  Close © Kris Ward MMXXVI Cyclops (Fenton, Murray and Jackson 26/1840) Representative photo
"Cerebus"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 27/1841	Great Western Rly, withdrawn Feb 1866.  Close © Kris Ward MMXXVI Cerebus (Fenton, Murray and Jackson 27/1841) Representative photo
"Pluto"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 28/1841	Great Western Rly, withdrawn July 1870 ran 526002 miles.  Close © Kris Ward MMXXVI Pluto (Fenton, Murray and Jackson 28/1841) Representative photo
"Harpy"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 29/1841	Great Western Rly, sold to Steam & coal, Abercarn August 1873 ran 239283 miles.  Close © Kris Ward MMXXVI Harpy (Fenton, Murray and Jackson 29/1841) Representative photo
"Minos"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 30/1841	Great Western Rly, withdrawn July 1870 ran 493790 miles.  Close © Kris Ward MMXXVI Minos (Fenton, Murray and Jackson 30/1841) Representative photo
"Ixion"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 31/1841	Great Western Rly, reb Sept 1863, withdrawn July 1879 ran 311418 miles.  Close © Kris Ward MMXXVI Ixion (Fenton, Murray and Jackson 31/1841) Representative photo
"Gorgon"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 32/1841	Great Western Rly, sold to Metropolitan board of works October 1878 as a pumping engine ran 295108 miles.  Close © Kris Ward MMXXVI Gorgon (Fenton, Murray and Jackson 32/1841) Representative photo
"Hecate"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 33/1841	Great Western Rly, withdrawn July 1870 ran 530602 miles.  Close © Kris Ward MMXXVI Hecate (Fenton, Murray and Jackson 33/1841) Representative photo
"Vesta"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 34/1841	Great Western Rly, withdrawn July 1870 ran 510999 miles.  Close © Kris Ward MMXXVI Vesta (Fenton, Murray and Jackson 34/1841) Representative photo
"Acheron"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 41/1842	Great Western Rly, wiothdrawn December 1864.  Close © Kris Ward MMXXVI Acheron (Fenton, Murray and Jackson 41/1842) Representative photo
"Erebus"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 42/1842	Great Western Rly, sold to Fielding & Platt July 1873 as a stationary boiler at Llanharan col ran 200139 miles.  Close © Kris Ward MMXXVI Erebus (Fenton, Murray and Jackson 42/1842) Representative photo
"Medea"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 43/1842	Great Western Rly, sold to Great Western col March 1874 ran 311136 miles.  Close © Kris Ward MMXXVI Medea (Fenton, Murray and Jackson 43/1842) Representative photo
"Hydra"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 44/1842	Great Western Rly, withdrawn July 1870 ran 556290 miles.  Close © Kris Ward MMXXVI Hydra (Fenton, Murray and Jackson 44/1842) Representative photo
"Lethe"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 45/1842	Great Western Rly, sold to Metropolitan board of works October 1878 as a pumping engine ran 298498 miles.  Close © Kris Ward MMXXVI Lethe (Fenton, Murray and Jackson 45/1842) Representative photo
"Phlegethon"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 46/1842	Great Western Rly, withdrawn January 1866. Was the loco used to haul the first train used by Queen Victoria from Slough to Paddington 13th June 1842 driven by Daniel Gooch. A 1/8th scale model was made by Joseph Clements and is now owned by the Science Museum..  Close © Kris Ward MMXXVI Phlegethon (Fenton, Murray and Jackson 46/1842) Representative photo
"Medusa"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 47/1842	Great Western Rly, withdrawn July 1870 ran 515205 miles.  Close © Kris Ward MMXXVI Medusa (Fenton, Murray and Jackson 47/1842) Representative photo
"Prosperine"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 48/1842	Great Western Rly, sold to Fielding & Platt July 1873 as a stationary boiler at Llanharan col ran 192727 miles.  Close © Kris Ward MMXXVI Prosperine (Fenton, Murray and Jackson 48/1842) Representative photo
"Ganymede"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 49/1842	Great Western Rly, sold to Metropolitan board of works August 1878 as a pumping engine ran 250551 miles.  Close © Kris Ward MMXXVI Ganymede (Fenton, Murray and Jackson 49/1842) Representative photo
"Argus"	Firefly	2-2-2 7'0¼"	Fenton, Murray and Jackson 50/1842	Great Western Rly, last loco built by FMJ, sold to D Joseph for Bristol col November 1873 ran 262621 miles.  Externaly Hosted Image - Alamy

Legend
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