Applied glass trails

Applied glass trails are decoration laid or wound onto a glass object while it is worked hot. The technique is called trailing. The Corning Museum of Glass describes its use on a vessel's body, handle or foot. Glass is added, rather than lines being cut or engraved out of the surface.

When describing an object, record where the trails lie, their direction and how they join the underlying glass. Distinguish the application itself from any subsequent working of the pattern. Do not identify every thread-like decoration as the same technique. Filigrana denotes glass made with canes and requires examination as a different construction.

Applied elements may have exposed ends and junctions worth photographing during condition assessment. Describe any missing portions precisely. Trailing alone establishes neither age, country of origin nor glassworks. A manufacturer attribution needs additional evidence, such as a documented model, provenance or reliable marking.

Sources: Corning Museum of Glass: Trailing; Corning Museum of Glass: Filigrana.