Stunning, FREE-BLOWN apparently MARBRE DECORATED ROLLING PIN, clear / colorless with large group of WHITE loopings, two pinched knob handles, looks like rough pontil marks (am not an expert, just guessing - see photos and feel free to ask questions). Photos make glass look blue / green / sea foam, but it is clear.  Could be from Italy, possibly Venetian glass, though uncertain of origin.  Measures approx 16" long x 2" deep, knobs 1.5" diameter.