It is an evolution or subsequent technique building upon the fasce (stripes). It is also known as the Phoenician technique (decorazione fenicia) or a pettine (combed).
Appearance: It features a zigzag, wavy, or feather-like pattern.
Process: First, the fasce (horizontal bands of color) are applied. Then, while the glass is still red-hot, the master glassmaker uses a comb or stylus (pettine) to drag the ribbons vertically up and down. This transverse combing transforms the straight lines into that highly characteristic wavy pattern
