The Agenoria was an early steam locomotive built by the Foster, Rastrick and Co partnership of Stourbridge, England.

In 1823, James Foster, who controlled the firm John Bradley & Co., took a lease of land at Shut End, Kingswinford from J.H.H.

The works, which were designed and constructed by John Urpeth Rastrick, were connected to the Stourbridge canal by a tramway.

An article in The Engineer from 1890 points out the similarities between the design adopted for Agenoria and that of the celebrated Puffing Billy of 1813–14.

[7] The cylinders acted through grasshopper beams, generally an unusual feature, but used on all of Foster, Rastrick's locomotives.

On the opening day, which according to Aris's Gazette, took place "amidst an immense concourse of spectators from the surrounding country", the locomotive first pulled eight carriages filled with 360 passengers along the level section at a rate of 7.5 miles per hour (12.1 km/h).

[10] At a Parliamentary enquiry Rastrick described the working of the railway and stated that, after loaded wagons had descended an inclined plane, "a Locomotive then takes them 2 miles (3.2 km), when another plane takes them to the bottom: the engine runs at a rate of 7 or 8 miles per hour (11 or 13 km/h), which is above its power, but is seldom out of order".

[11] Although it is not known when Agenoria finished its working life, a letter from the mineral agent of the Dudley Estate to James Foster's successor at John Bradley & Co, William Orme Foster, implied that the locomotive was not running on the line in April 1864 although it is not clear whether it was a temporary or permanent stoppage.

Foster's agent wrote back agreeing to provide a new engine as part of an agreement to improve the railway.

Marten, obtained the permission of the owner William Orme Foster to reassemble the engine (including the missing cylinder) and display it at an exhibition in Wolverhampton in 1884.

[6] The locomotive was loaned to the London & North Eastern Railway's Museum at York in 1937 but was sent to Reedsmouth in 1941 to preserve it during the war.