1851 Great Exhibition: Official Catalogue: Class IX.: W. Ball
132. BALL, W., Bothwell, near Kettering, Northamptonshire — Inventor and Manufacturer.
Criterion plough, made of iron, with steel or cast-iron turn-furrow.
Criterion plough, without wheels.
Two-horse waggon, either with pole or shafts, with patent axles and perpendicular wheels.
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