Vintage Italian Venetian Blown Glass Millefiori Demitasse Cup & Saucer Blue Gold

Vintage Italian Venetian Blown Glass Millefiori Demitasse Cup & Saucer Blue Amber Gold. Cup is about 2" tall x 2.5" diameter base. Saucer is 4.5" in diameter. Probably dates to the 1950s or so. Hard to find demitasse or espresso cup from Italy. No chips, no cracks. Unsigned. There is a rough spot on the lip of the cup as shown. I have looked under a loop and it does not appear to be a defect or chip. I believe it happened when it was made.