4S-006-002 48XX Class 0-4-2 4820 Green 'Great Western' Steam LocomotiveExpected Delivery Q2 2026 (Subject to Change at Manufacturer's Discretion). The 48XX and 58xx was designed to replace the earlier 19th century George Armstrong Wolverhampton 517 class. Charles Collett improved the design with new higher pressure boilers and an improved cab. A total of 75 14xx were built with auto gear for working with trailer cars and when introduced were numbered 48xx to 4874 with 20 non auto fitted 58xx class constructed for general