This WSP Constructing & Scratchbuilding Realistic Open, Mineral & Hopper Wagons book describes best-practice when constructing or scratch-building such models in 4mm scale.
The "CONSTRUCTING/SCRATCHBUILDING OPEN MINERAL HOPPER WAGONS IN 4mm SCALE BOOK *VGC*" is ideal for hobbyists and advanced builders who enjoy creating intricate miniature railway systems with detachable mineral hopper wagons in 4mm scale.
