Glass Thickness/Object's Weight

Renaissance

Mid-16th- to early 18th-century objects typically thinly blown to an extreme degree; extremely light

five earlier objects, illustrating lighter weight
FIG. 55a

A selection of early Venetian goblets, illustrating a pattern of lighter weight. The Corning Museum of Glass (79.3.563, 63.3.8, 74.3.163, 2000.3.10, and 51.3.119)

19th Century

Objects are never of extreme thinness or lightness

fiver later objects, illustrating heavier weights (117 - 162 grams)
FIG. 55b

A selection of later Venetian goblets, illustrating a pattern of heavier weight. Private collection.