The SEUTHE Brass Smoke Unit Tri-ang Hornby is a vintage model train accessory designed for British Rail steam locomotives in 1:76 scale. This unassembled kit features a working smoke unit, perfect for adding a realistic touch to your model railway layout. With a traditional analogue control system and a two-rail system, this smoke unit is a must-have for collectors and enthusiasts of historical Era 3 locomotives from the 1970s. Made of brass, this Tri-ang Hornby accessory embodies the charm and nostalgia of British railways during the Big Four era.