Here's why I thought it looked Venetian - some Venetian beads appear to have similar construction but not as precise as the subject bead, at least in my first look through the beads in my collection. But since Venetian beads vary a lot within a design group, I thought it was possible this was a degraded Venetian. Plus the combed designs are very common in Venetian beads.

As has been noted by many researchers, the Venetians copied earlier designs, sometimes with amazing accuracy.