Mae'r cwcis hyn yn gwbl angenrheidiol ar gyfer weithrediad y wefan.
Rydym yn defnyddio Google Analytics i fesur sut ydych yn defnyddio'r wefan er mwyn i ni ei wella yn seiliedig ar angen defnyddwyr.
Gall y cwcis hyn gael eu gosod gan wefannau trydydd parti a gwneud pethau fel mesur sut rydych yn gwylio fideos YouTube.
Amgueddfa Cymru
Steam engine made at Nixon's Navigation Colliery. Portable engine with belt drive used to drive a pump, or other small machines, in any part of the mine. It was designed to run on compressed air rather than steam. 4" diameter and 5" stroke.
R.E. "Small vertical steam engine (crankshaft above piston). Crankshaft supported by two cast iron frames, round crosshead guide bars, flywheel (630mm dia) has 'S' shaped spokes, crowned pulley (300mm dia) appears to be balanced, heavy cast iron base. Colour - green and black, paint not original."