What date is most Art Deco glass?

The dated field runs 1910 to 1950, and of the 642 listings carrying a clean year, 525 fall in the 1930s and 111 in the 1920s. Only five sit in the 1940s and 1950s together. c1930 appears in 165 titles. In practice it works as shorthand for interwar rather than a precise year, and a few titles give a firmer date than the field does.

Which pieces turn up most often?

Vase, perfume and decanter are almost level as the leading object words, at 121, 120 and 115 titles. Bottle follows at 111, perfume bottle at 79. So the heading really covers three collecting habits filed under one style: French and Czech vases, dressing-table glass, and drinking sets.

Is Czech glass the same as Bohemian?

The titles use Bohemia, Czechoslovakia and Czech Republic for glass made in the same interwar decades and the same region. Which word a dealer picks is a matter of habit. Czech appears in 81 titles and enamel in 82. The typical form is a decanter, whisky or liqueur set, or a tall etched vase.

What is uranium glass in these listings?

Greenish-yellow glass coloured with uranium oxide, which fluoresces. It shows up 16 times in the archive, sometimes described as vaseline glass. It isn't confined to one form. Tall enamelled Czech vases carry it, and so does a whole cocktail shaker.

Are car mascots part of this category?

Yes, and they're the oddest thing in it. Thirteen titles cover moulded glass radiator ornaments, in the shape of sparrows, a dragonfly, a perch, a wild boar, a peacock's head and five horses. They sit at the very top of the sample.

How many dealers list Art Deco glass?

Around 72 pieces are listed a year on Sellingantiques, handled by 86 different dealers over time. That makes it a broadly stocked category rather than a specialist corner. Only one name, Karl Palda, is carried by three or more of them. Every other maker in the titles is effectively one or two dealers' stock.