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A signal box situated between [[Arley]] and [[Highley]], controlling access to the exchange sidings for [[Collieries served by the Severn Valley Railway#Billingsley Colliery | Billingsley]] and [[Collieries served by the Severn Valley Railway#Kinlet Colliery | Kinlet]] Collieries. Unlike all other signal boxes on the line, it was able to switch out, presumably only being open when required. The Signalling Record Society holds a document (SRS200701006) dated 16/08/1911, which references a new connection to Billingsley Colliery, including the provision of a new signal box. The signalbox was opened in 1913, and there are records of new tablet machines being provided in Arley and Highley signalboxes, used for long section working (short section working was by staff). The tablet machines on the long section were later replaced by token instruments. The box is recorded by the SRS as having 38 levers, making it one of the largest on the SVR. Of these, 32 were operational and 6 were spare<ref>The Severn Valley Railway, John Marshall (1989), p133.</ref>.

==Kinlet Sidings ground frames before 1913==The first siding for the Highley Mining Company’s Kinlet Colliery is recorded as being was sanctioned for use by the Board of Trade on 9 October 1895. It had a single south-facing connection to the main line. The GWR subsequently entered into a contract for coal from the colliery, and in 1899 the sidings were greatly enlarged and connected to a 320 yard loop off the SVR in 1900 - it is not known how this main line, accessed by a ground frame at each end. The Kinlet Sidings North ground frame was achievedlocated on the left (west of the line) at 142 miles 9 chains, and Kinlet Sidings South ground frame on the right (east of the line) at 142 miles 3.9 chains.

The New Billingsley Colliery Company applied to the GWR for siding accommodation in 1911. This was provided at the point where Kinlet traffic was already dealt with. The line to the Billingsley colliery opened in 1913 and was 3&frac12; miles in length, with a reversal one mile from the colliery<ref name = “Marshall97”>The Severn Valley Railway, John Marshall (1989), p97.</ref>. ==Kinlet and Billingsley Sidings Signal Box 1913-1943==To handle the increased traffic from both collieries, a new signal box was opened in December 1913. Unlike all other signal boxes on the line, it was able to switch out, presumably only being open when required. The Signalling Record Society holds a document (SRS200701006) dated 16/08/1911, which references the new connection to Billingsley Colliery, including the provision of the new signal box. There are records of new tablet machines being provided in Arley and Highley signalboxes, used for long section working (short section working was by staff). The tablet machines on the long section were later replaced by token instruments. The box is recorded by the SRS as having 38 levers, making it one of the largest on the SVR. Of these, 32 were operational and 6 were spare<ref>Marshall, p133.</ref>. Presumably the existing ground frames were removed when the signal box was commissioned. ==Kinlet and Billingsley Sidings ground frames after 1943==Billingsley Colliery closed in 1921, and although use of the line by a nearby land-sale wharf continued. Kinlet Colliery closed in 1937when production moved to Alveley, following which both colliery lines were removed at some time before 1941. Following this The Highley Mining Company established a wagon repair works at the location, so when the signal box was closed in March 1943, but Working Time Tables from 1948, 1949 and 1960 reference an intermediate token machine provided at the sidings, as well as it was replaced by two ground frames - , once again referred to as Kinlet Sidings North ground frame and Kinlet Sidings South ground frame. These were locked by the electric train token for the [[Arley]]-[[Highley]] section. There was also an intermediate token machine provided in a cabin in the middle of the loop.<ref name = “Marshall97” /> Working Time Tables from 1948, 1949 and 1960 refer to these arrangements.