Dating antique glassware
Crowds chanted "Wilkes, Liberty and the Number 45".
W9916 Rare Art Deco decanter set, the decanter with plain angular baluster shaped body on foot with black blade collar. The six glasses with plain conical bowls on black baluster stems and feet.
From early 18th century heavy balusters to late 18th century facet stem wine glasses, we offer a large range of arguably the most beautiful hand made, Georgian drinking glasses ever produced.
If Georgian drinking glasses aren't what you are looking for then, from time to time, you'll find eighteenth century candlesticks, decanters, jelly glasses, kitchenalia, oil lamps, sweetmeats, taper sticks, wine bottles and other items.
W9780 Rare Georgian wine glass with bell bowl on composite multispiral airtwist stem above annulated collar, compressed knop, compressed beaded knop and short straight section, on domed foot. W9894 Superb pair of Georgian rummers with barrel shaped bowls cut with a band of diamonds over basal swirling mitre flutes and blazes, on blade knopped stems and feet cut with radiating mitre flutes.
W1471 Beautiful pair of Georgian wine glasses with round funnel bowls finely engraved with Britannia holding an olive sprig* surround by flowers and foliage, on stems cut with hollow hexagonal facets. 9932 Fine Georgian ale flute wuth round funnel bowl engraved with a bunch of hops wioth a pair of leaves and two pairs of barley ears crossed, on multispiral airtwist stem with shoulder and centre knops. W7998 Lovely Georgian wine glass with round funnel bowl engraved with a hatched and festooned border with pendants over sprays of foliage, on opaque twist stem with spiral lace twist over corkscrew.
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A revised backstamp, with PATENTED above PYREX and MAY 27, 1919 below, was used after that date through 1924. A model number and the capacity in pints or quarts were added above, and OVEN WARE below. Later pieces are also recognizable by, instead of "MADE IN U. A.", the the wording "by CORNING, Corning, NY, USA" with the verbiage NO BROILER OR STOVETOP or, later, BAKING AND MICROWAVE below.
Starting in the mid-1970s, equivalent metric capacities were also embossed on pieces, therefore any seen so-marked can be dated positively later than that.
While itâ€™s not the end of all answers in antique authentication and dating, it is a good place to start.
The following techniques should be used in conjunction with other authenticating tools or research.
Search for dating antique glassware:
While colors and styles of decoration reflected consumer tastes at the time of production, the first thing to look at is the backstamp. But the product would not be branded Pyrex until the debut of kitchenware made from it nearly a decade later. New patterns were introduced in keeping with changing tastes, so they can also give clues as to time period.