Objects and Techniques

Full length video recreating entire object
Short video focusing on single technique
Note: some objects require multiple techniques and may appear in multiple decorative technique categories.
  • Dip (optic) molding

    Glass decorated by using a cylindrical or truncated conical one-piece mold with a patterned interior. The mold is open at the top so that glass can be dipped in to create a pattern on the exterior of a gather of glass or on a bubble.

    • Ribbed type

      Glass decorated by using a cylindrical or truncated conical one-piece mold with a patterned interior. The mold produces a pattern of vertical ribs in the walls of a glass object.

      Aspersorium full length video recreating entire object
      Additional terms: Twisted
      Goblet with Inner Blue Ball short video focusing on single technique
      Additional terms: Straight
      Wineglass with Kuttrolf Stem short video focusing on single technique
      Additional terms: Straight
      Wineglass with A Penne short video focusing on single technique
      Additional terms: Twisted
      Dragon-stem Goblet full length video recreating entire object
      Additional terms: Straight Twisted
      Wineglass with Flameworked Flowers full length video recreating entire object
      Additional terms: Twisted
      Flared Wineglass with Wings full length video recreating entire object
      Additional terms: Twisted
      Lidded Goblet with Aqua Chain full length video recreating entire object
      Additional terms: Straight
      Goblet with Aqua Stem full length video recreating entire object
      Additional terms: Twisted
      Quatrefoil Goblet short video focusing on single technique
      Additional terms: Twisted
      Enameled Goblet full length video recreating entire object
      Additional terms: Straight
      Tazza full length video recreating entire object
      Additional terms: Twisted
    • Pineapple (lozenge) type

      Glass decorated by using a cylindrical or truncated conical one-piece mold with a patterned interior. The mold produces a decoration that resembles the surface of a pineapple.

      Three-bubble Cup with Pineapple Dip Molding full length video recreating entire object
      Footed Goblet with Pineapple Dip Molded Cup full length video recreating entire object
    • Mezza stampaura (half-molding)

      A term applied to the process of making vertical ribs on the lower part of a blown glass object by gathering additional glass on the parison and inflating it further in a dip mold.

      Enameled Tazza full length video recreating entire object
      Footed Bowl with Filigrana full length video recreating entire object
      Additional terms: Nipt-diamond-waies
      Enameled Bowl full length video recreating entire object
      Enameled Goblet full length video recreating entire object
      Additional terms: Nipt-diamond-waies
      Ampollina full length video recreating entire object
      Additional terms: Broken-ribbing (snipped)
  • Wraps

    Threads of glass that extend around a vessel.

    • Edge-wrap

      A trail, usually of a contrasting color, wrapped around the edge of the rim. It is also known as a lip wrap.

      Aspersorium full length video recreating entire object
      Footed Bowl with Filigrana full length video recreating entire object
      Enameled Goblet full length video recreating entire object
      Ampollina full length video recreating entire object
    • Body-wrap

      Threads of glass that extend, beltlike, around the circumference of a vessel.

      Lion-mask Stem short video focusing on single technique
      Additional terms: Manipulated/tooled
      Enameled Bowl full length video recreating entire object
      Additional terms: Plain
      Wineglass with Flameworked Flowers full length video recreating entire object
      Additional terms: Manipulated/tooled
      Ampollina full length video recreating entire object
      Additional terms: Plain Manipulated/tooled Spiral
      Small Cup with Two Handles full length video recreating entire object
      Additional terms: Plain
    • Chain-wraps

      A pair of closely spaced wraps that have been pincered together at intervals to create a chain-like appearance.

      Lidded Goblet with Aqua Chain full length video recreating entire object
  • Filigrana

    (Italian, “filigree glass”) The generic name for blown glass made with colorless, white, and sometimes colored canes. The filigrana style originated on the island of Murano in the 16th century and spread rapidly to other parts of Europe where façon de Venise glass was produced. Manufacture on Murano continued until the 18th century, and it was revived in the 19th century.

    • Simple canes
      Three-bubble Goblet with Filigrana full length video recreating entire object
    • Complex canes
      Three-bubble Goblet with Filigrana full length video recreating entire object
      Footed Bowl with Filigrana full length video recreating entire object
    • Band-oriented
      Footed Bowl with Filigrana full length video recreating entire object
    • Reticello

      (Italian, “glass with a small network”) A type of blown glass made with canes organized in a crisscross pattern to form a fine net, which may contain tiny air traps.

      Reticello Lidded Bottle full length video recreating entire object
      Reticello Platter full length video recreating entire object
  • Faux reticello

    A technique which produces an appearance similar to traditional reticello without the bubble at the intersection of the canes.

    Three-bubble Vessel with Faux Reticello short video focusing on single technique
  • Full-size mold-blowing

    Inflating a parison of hot glass in a mold. The glass is forced against the inner surfaces of the mold and assumes its shape, together with any decoration that it bears.

    Lion-mask Stem short video focusing on single technique
  • Gilding, hot applied

    The process of decorating glass by the use of gold leaf, gold paint, or gold dust. The gilding can be applied with size, or amalgamated with mercury. It is then usually attached to the glass by heat. Gold leaf can be picked up on a gather of hot glass.

    Lion-mask Stem short video focusing on single technique
    Wineglass with Flameworked Flowers full length video recreating entire object
    Ampollina full length video recreating entire object
    Spoon full length video recreating entire object
  • Colored frit, twisted and manipulated

    Batch ingredients such as sand and alkali, which have been partly reacted by heating but not completely melted. After cooling, frit is ground to a powder and melted. Fritting (or sintering) is the process of making frit.

    Lidded bowl with Frit Decoration short video focusing on single technique
  • A penne (combed threading)

    Decoration in which a spiral thread (wrap) of colored glass (usually white) is manipulated with a tool to create a festooned pattern on the surface of a vessel.

    Wineglass with A Penne short video focusing on single technique
  • Special edge shapes

    Shaping edges by slumping or molding a hot vessel

    • Fazzoletto opening (handkerchief opening)

      A technique that creates a shape at the edge like a handkerchief floating downward after being tossed in the air.

      Wineglass with Fazzoletto Rim short video focusing on single technique
    • Fin-molded opening

      A shaping process in which a mold having tapering blades is inserted inside a hot vessel to give it a faceted shape.

      Aspersorium full length video recreating entire object
    • Crimp-molded opening

      A shaping process in which a tool is used on both the inside and outside of a hot vessel to give it a wavy shape.

      Quatrefoil Goblet short video focusing on single technique
  • Chalcedony/aventurine glasses

    Glass marbled with brown, blue, green, and yellow swirls in imitation of chalcedony and other banded semiprecious stones. Calcedonio was first made in Venice in the late 15th century.

    (from French aventure, “chance”) Translucent glass with sparkling inclusions of gold, copper, or chromic oxide, first made in Venice in the 15th century. Aventurine glass imitates the mineral of the same name, a variety of translucent quartz spangled with mica or other minerals.

    Beaker with Chalcedony Glass and Aventurine short video focusing on single technique
  • Kuttrolf stem

    (German) A flask with the neck divided into two or more tubes. The Kuttrolf, which has Roman antecedents, was produced by German glassworkers in the later Middle Ages; it is also found among Venetian and façon de Venise glasses of the 16th and 17th centuries.

    Wineglass with Kuttrolf Stem short video focusing on single technique
  • Internal decorative element

    A bulb of colored glass (usually aqua) attached within the interior of a vessel.

    Goblet with Inner Blue Ball short video focusing on single technique
  • Free-floating rings

    A decoration in which rings of glass are trapped (but not fixed) on the exterior of a vessel, using tiny strips of molten glass.

    Aqua Rings on Simple Tumbler short video focusing on single technique
  • Ice glass

    A decorative effect that causes the surface of the glass to resemble cracked ice. This is achieved by repeatedly plunging a parison of hot glass into cold water and withdrawing it quickly. The thermal shock creates fissures in the surface, and these impart a frosted appearance after the parison has been reheated to allow the forming process to continue.

    Aspersorium full length video recreating entire object
  • Millefiori

    A decoration achieved by embedding in molten glass small slices of canes that have regular patterns of contrasting color.

    Millefiori Ball full length video recreating entire object
  • Flameworked

    The technique of forming objects from rods and tubes of glass that, when heated in a flame, become soft and can be manipulated into the desired shape. Formerly, the source of the flame was an oil or paraffin lamp used in conjunction with foot-powered bellows; today, gas-fueled torches are used.

    Wineglass with Flameworked Flowers full length video recreating entire object
    Ampollina full length video recreating entire object
  • Structural/decorative additions
    • Handles

      Structural additions (usually solid) added to vessels, usually at the end of the manufacture process, for either decoration or to allow one to hold the vessel more easily.

      Aspersorium full length video recreating entire object
      Lidded bowl with Frit Decoration short video focusing on single technique
      Ampollina full length video recreating entire object
      Small Cup with Two Handles full length video recreating entire object
    • Spouts

      A tubular structure created at the surface of a vessel to allow one to pour from the vessel more easiliy.

      Ampollina full length video recreating entire object
    • Wings

      A type of goblet with the stem in the form of vertical, winglike flanges composed of trails arranged in a complex design that may include dragons, sea horses, and other creatures. The German term for a winged goblet is Flügelglas.

      Wineglass with A Penne short video focusing on single technique
      Wineglass with Flameworked Flowers full length video recreating entire object
      Flared Wineglass with Wings full length video recreating entire object
      Quatrefoil Goblet short video focusing on single technique
  • Morise (bit-work)

    Tiny amounts of molten glass that are added atop other decorative elements (such as “wings’), then manipulated with tools.

    • Waffle-tooled bits

      Tiny amounts of molten glass that are added atop another decorative element and then squeezed with a two-bladed tool to create a waffle-like pattern.

      Wineglass with A Penne short video focusing on single technique
      Ampollina full length video recreating entire object
    • Zipper-bits

      Tiny amounts of molten glass that are added in the form of a line and then immediately manipulated with tweezers to create a denticulate pattern.

      Dragon-stem Goblet full length video recreating entire object
      Wineglass with Flameworked Flowers full length video recreating entire object
      Flared Wineglass with Wings full length video recreating entire object
      Quatrefoil Goblet short video focusing on single technique
    • Sheared bits

      Tiny amounts of molten glass that are partially cut with shears to create feather-like edges.

      Dragon-stem Goblet full length video recreating entire object
  • Prunts

    A blob of glass applied to a glass object primarily as decoration, but also to afford a firm grip in the absence of a handle.

    • undecorated
      Ampollina full length video recreating entire object
    • Raspberry

      A flat, circular prunt with an impressed design resembling a raspberry.

      Reticello Lidded Bottle full length video recreating entire object
      Ampollina full length video recreating entire object
      Spoon full length video recreating entire object
  • Enameling and gilding (both applied cold, and then fired)

    Enamels consist of intensely colored glass (or colorless glass that has been mixed with a metallic oxide) that has been finely ground and mixed with a liquid medium to facilitate painting. After its application to a cooled object, the decoration is fired at a high temperature for permanence. Gold is usually applied in the form of leaf or slightly thicker foil; the gold and enamels are fired together.

    Enameled Tazza full length video recreating entire object
    Enameled Bowl full length video recreating entire object
    Enameled Goblet full length video recreating entire object
  • The Avoidance of Decoration: Studies in Pure Form
    Reliquary full length video recreating entire object
    Wineglass with Coin in Stem full length video recreating entire object
    Simple Flared Wineglass full length video recreating entire object
    Classic Flared Wineglass full length video recreating entire object
    Goblet Made from Three Bubbles full length video recreating entire object