"Glass And Boxwood Hourglass On Black Ball Feet"
With an absolutely superb patina, here is a blown glass hourglass set by three turned boxwood columns and placed on trays also in turned boxwood, the whole rests on three feet in the shape of black-tinted balls. It lasts 30 minutes, 28 min and 34 seconds to be completely exact according to the last count. 19th century.
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