22x12mm Venetian millefiori bead in Black Multicoloured (1960/70s)

This is a Black Multicoloured millefiori bead which was made on Murano- Venice in the 1960s and 1970s. The bead is approximately 22mm by 12mm. It has 8 sides so the bead looks like two pyramids joined at the widest part. Due to the production methods- there is a lot of variation between the beads so no two are the same.