Steam Engine Junior

Heavy cast iron base with 4 uprights, on one end of which is fitted a hand nut, the other drilled with holes to carry a cast iron rod bearing against narrow flats with 12 cast iron breaking rods to show force of contraction or expansion

Fixed on polished wooden base, single barrel made of steel pipe with stopcock.
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Pump plate made of aluminium dia (a) 15 cm (b) 20 cm (c) 25 cm.