17x9mm 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 oval bead is approximately 17mm by 9mm. Due to the production methods- there is a lot of variation between the beads so no two are the same.