|Photo: Charles Moorhen|
British Railways Research & Delvelopment Division Test Car 'Iris', is seen here, on the 20 August 1988, in a bay platfrom at Banbury station during her last few years of service bearing the number 79900/RDB 975010.
Formerly Class 121 122, this single-car DMU was built in 1956 at British Rail's Derby Works and first saw service as M79900 on the Banbury - Buckingham line.
She was withdrawn from passenger service in October 1967.
In 1968 British Railways extended the working life of M79900 by converting it into a railway test car, renumbering it 79900/RDB 975010, and naming it 'Iris'.
After complete withdrawal from the railway network, the old Class 121 was saved by the preservation movement.
'Iris' now resides, and is in regular service, at the Ecclesbourne Valley Railway, Norfolk, where its livery has been returned to the one used during it working life - BR Green with yellow 'Speed Whiskers'.
This fully restored dmu has been a welcome visitor to other preserved railway such as the Churnet Valley Railway, the Llangollen Railway and the Severn Valley Railway.
Since writing this blog post the bay platform in the photo is no longer in use.
A selection of railway videos from 'Along These Tracks'
UK Railways - Banbury Trains 16 June 2014 Video
UK Railways - Trains at Gravesend March 2014 Video
UK Railways - Class 321 and 319 EMUs at Northampton 1999
UK Railways - Freight Through Northampton May 1999 Video
UK Railways - Class 58018 Heading a Ballast Train at Finedon
UK Railways - Banbury Trains at Night Video
UK Railways - Trains at Basingstoke Station 12 August 2013
UK Railways - 375 and 395 EMU's at Martin Mill and Ashford International
UK Railways - Freight Trains Through Northampton May 2013
UK Railways - Virgin Pendolinos Through Bletchley May 2013
UK Railways - Class 350 Desiro EMU Trains at Northampton May 2013
UK Railways - Class 390 Virgin Pendolinos Through Wolverton 2013 Video
UK Railways - Class 350 'London Midland' EMU's at Wolverton 2013 Video
UK Railways - Chiltern Railways, First Great Western, XCountry DMU's at Banbury 2013
UK Railways - Class 222 Trains DMU's at Wellingborough Apr 2013
UK Railways - Class 43 IC125 Trains at Wellingborough Apr 2013 Video
UK Railways - Class 222 Trains, DMU's, at Wellingborough Apr 2013 Video
UK Railways - Class 321 EMU Snakes into Bletchley Sidings 1990's
UK Railways - Class 321 & 350 EMU's at Wolverton Video
UK Railways - Class 321 Network South East leaves Bletchley Video
UK Railways - Class 321 Silverlink Trains EMU leaves Wolverton Video
UK Railways - Class 325 Royal Mail EMU Passes through Rugby Video
UK Railways - Class 350 127 EMU Passes through Rugby Video
UK Railways - Class 321 418 Silverlink EMU at Wolverton
UK Railways - Class 60 015 Diesel Locomotive approaches Wolverton
UK Railways - Virgin Pendolino Class 390 041 EMU at Rugby Video