Britannia: Motion Arrangement, Rods, and Valve Gear Details Drawing
Britannia: Complete Doug Hewson Drawing Set
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GWR 5700 Pannier Tank: Doug Hewson Complete Drawing set
GWR 5700 Pannier Tank: Valve Gear, Reverser, and Rear Springing Arrangement Drawing
BR STD Class 4 Tender 75000: Complete Doug Hewson Drawing Set
BR STD Class 4 Tank 80000: Valve Gear Layout and Details Drawing
BR STD Class 4 Tank 80000: Complete Doug Hewson Drawing Set
