Invaluable
APRIL 10, 2024
The evolution of the champagne glass is much more complex and historically significant than a discussion of glass shape would at first imply. Shortly after, in 1674, the invention of lead glass by George Ravenscroft changed the art of glassmaking forever. These had simple, short stems and round, funnel-shaped bowls.
Artifactual History Appraisal
MAY 6, 2020
GLASS DECORATIVE ITEMS AND TABLEWARE/BARWARE: A. How to photograph so an expert can see: Cut glass versus pressed – hard to see in photos. Shoot a close up of bottom, there, look for these features: Pontil mark, which is where the glass blower would have attached his blow rod. Look for a fraction or number.
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Sarasota Antique Buyers
SEPTEMBER 9, 2024
To check for these markings, look for a stamp or engraving on the inside of the jewelry piece. If you suspect the imprint may be fake, it’s time to break out your high quality magnifying glass for a closer look; fake jewelry, stamps to look more undefined and are applied in a slapdash fashion when compared to the genuine deal.
Invaluable
AUGUST 26, 2024
Ancient Astrolabe Elaborately engraved and intricately designed, astrolabes were at the forefront of science in ancient times, as they connected curious stargazers to the world around them. Its simple arrangement of glass lenses to magnify objects was not too dissimilar to a pair of opera glasses.
Jewelry Judge
AUGUST 1, 2024
"It will be a variegated portrait of our species engraved in micropixels – up to 7 billion per disc.” All of the information contained on the discs will be readable with the naked eye or by using a simple magnifying glass.
Grays Antiques
FEBRUARY 12, 2024
The carved snake holds a later engraved silver heart, c.1880. Georgian pearl and 18 carat gold pendant centred with circular glass. And don't forget, we also have engraving services downstairs at O'Connells Engravers - who can add a touch of personalised charm to your gifts! Le Gallerie Degli Uffizi, Florence.
Penrose Appraisals
FEBRUARY 8, 2024
The best glassware, for example, is beautiful to look at, but it also can be used easily - either as a pitcher, a vase, a drinking glass, or other such object. Examine your collection closely, using a magnifying glass and strong light if necessary. This is also true in many other areas of collecting, such as ceramics, glass, or silver.
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