works was used as a munitions factory (largely staffed by women) from 17 September 1915 until early in 1919. The fortunes of the railway and its works declined from the mid-1920s with total closure from March 1947 to September 1954. Preservation era The works reopened on 20 September 1954, since when many of the original buildings have been extensively repaired and their usage altered. Machinery has been updated and modern materials and techniques have been introduced. Additional workshops have been built as well as new locomotive servicing facilities and carriage storage depots. The works undertakes the restoration and preservation of the railway's historic locomotives, carriages, wagons and features of all descriptions. It also builds new steam locomotives and passenger carriages, and undertakes the ongoing maintenance of the Ffestiniog Railway's expanding fleet of railway vehicles. In 1977, Boston lodge works undertook the design and installation of oil-firing equipment on the British Railways locomotive "Owain Glyndwr" on the Vale of Rheidol Railway. This was probably the first of numerous outside contracts that the works has undertaken over the years. These outside contracts have included restoration work on steam engines and the complete construction of various replica narrow-gauge passenger coaches. In December 1998, a £375,000 Heritage Lottery Fund Grant was awarded to the FR Trust and this provided, amongst other things, for the construction of an extension to the carriage workshop at Boston Lodge to form a ‘Heritage Centre’ that would be a permanent home for the restoration of historic vehicles in a secure environment. Restoration to a very high standard has included most of the surviving Ffestiniog Railway Victorian era passenger coaches and a carefully selected rake of about 50 slate wagons representing most of the variant types characteristic of the local slate operations. From 1993 onwards Boston Lodge works has undertaken extensive locomotive restoration work for the Ffestiniog Railway owned Welsh Highland Railway (Caernarfon). Recently the works is undertaking the construction of new passenger carriages for service between Caernarfon and Porthmadog. Works layout In the aerial photograph at right, at the end of the embankment (this end being called locally 'Pen Cob') is the junction into the railway works yard. To the forefront of the works site is the large white building that is Nos: 1 and 2 Boston Lodge Cottages. Next to which, on the right, is the original 'Penrhyn Isa Cottage/Boston Lodge' now the works offices. All the rest