Glass: A Pocket Dictionary Of Terms Commonly Used - Corning ...

hollows. When the glass is covered with a second gather,
the hollows become air traps. This technique is used
to decorate knops and paperweights.
Pezzato (italian, “dappled”): A type of decorated glass
developed in 1950–1951 by Fulvio bianconi (1915–1996)
for venini & C. of Murano. The object is covered with a
patchwork of rectangles of different colors, created by
placing sections of flattened canes side by side on a
metal plate, heating the slices until the glass is soft, and
then picking them up on a colorless parison, smoothing
them on a marver, and inflating the parison to the
desired shape and size.
Phiale (from Greek phialē, “bowl” or “pan”): A broad, flat
bowl for drinking or pouring libations.
Pick-up decoration: A technique whereby a hot parison
is rolled in chips of glass, which are picked up, marvered,
and inflated.
Piece mold: A mold made of two or more parts.
Piggin: A small cylindrical drinking vessel, often of
wood, with one stave longer than the rest and serving
as a handle.
Pilgrim flask: A flat flask with a ring on each side of the
neck for the insertion of cords by which it can be suspended.
Pillar-molded glass: A term used by 19th-century English
glassmakers to describe vessels with mold-blown
vertical ribs but no corresponding indentations on the
interior. This effect was achieved by partly inflating the
gather, allowing it to cool sufficiently to become somewhat
rigid, and then gathering an outer layer of glass
around it. The parison was then further inflated in a
ribbed dip mold, which shaped the soft outer layer
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