If you are referring to the Moretti millefiori beads you showed earlier, yes, they are Venetian, mid to late 20th century (post WWII). Decades can pass between the making of the canes and the using of the cane slices on beads, then more years can pass before the beads are sold. Bead dates are always approximate.

Hole sizes for Venetian beads depends upon the intended market. Trade beads made for Africa have large holes. Beads with small holes were created for the western (Europe/America) jewelry markets. Venetian beads of both types can be found with the same or similar cane slices.