Welsh, c.1875, engraved S MARKS CARDIFF, with tall rectangular silvered scale with siphon tube with open bulb at the bottom and sealed bulb to the top filled with a red liquid, thermometer to the left with mercury tube with Fahrenheit scale ranging between 0 & 120, adjustable silvered scale to the side with expanded scale annotated for barometric inches and with the usual weather observations, the lower left edge with silvered circular recording disc labeled improved sypiesometer, engraved with barometric scale visible through an arched aperture, height 59cm