A hourglass is an instrument that measures an interval of time corresponding to the flow of a quantity calibrated of "sand", inside a transparent container. These hourglasses use small metallically colored glass beads by electrolysis, granting the hourglass an incomparable precision ... By approaching your ear, you will attend the delicious music of the passing time! Listen...
H 30 x 10 x 10 cm
H 25.59 x 12.6 x 19.69 Inch
