Asked by: Lynelle Schuett
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What is EAPG glass?

Last Updated: 5th March, 2020

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EAPG: A short explanation:
Early American Pattern Glass (EAPG for short) is clear or coloured pressed glass made from around 1850 until about 1914 in matched sets. Many different companies produced EAPG, and some patterns were produced by more than one company, due to mergers, trading of molds, and copying.

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In respect to this, what does EAPG glass mean?

Early American Pattern Glass

Also Know, when was pressed glass made? Pressed Glass, also referred to as Pattern Glass, was produced between 1850 to 1910. The majority was produced in the 1880's. When it was originally designed, it was intended for everyday use and was made to be very durable and at the same time, attractive.

In this regard, is Pressed Glass valuable?

Colored glass that is pressed can be of significant value however soda lime or flint glass typically isn't all that valuable. Avoid glassware with chips, cracks, or abrasions. If your pressed glass piece is a bottle, learn how to tell how old your bottle is here.

Does vintage glass have seams?

A related characteristic is the coarseness of the edges along the mold lines. Early glass was pressed into the mold for much longer and the molds were clamped together with less pressure than is modern glass. On modern glass, the mold seams are very smooth. Bubbles occur in all glass but are more common in old glass.

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Why does old glass turn purple?

Why Glass Turns Purple
The element manganese found within glass will remain colorless as long as it does not oxidize to form manganese oxide. However, radiation from the sun will cause manganese to oxidize. Glass exposed to sunlight for a long period of time will turn purple if it contains manganese.

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Is Flint Glass clear?

In the container glass industry, flint glass is any clear glass free of colouring.

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What is cut glass?

"Cut glass" is glass that has been decorated entirely by hand by use of rotating wheels. Cuts are made in an otherwise completely smooth surface of the glass by artisans holding and moving the piece against various sized metal or stone wheels, to produce a predetermined pleasing pattern.

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What glassware is valuable?

Bowl milk glass via Wikimedia Commons. Despite its name, white wasn't the only color produced: opaque black, pink, and green were some of the more expensive variants of milk glass. Generally, pieces dating from the mid-19th through the early-20th century are considered the most valuable.

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Is vintage cut glass worth anything?

American cut glass is a very valuable collectible on the antiques market. Values range based on quality, maker, condition, and pattern and many pieces regularly are worth $1,000 to $100,000.

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How can you tell if glass is antique?

Tips for Identifying Antique Glass Using Marks and Other Clues. Most pieces of old glass do not have any glass markings. Check for excessive wear and scratches on the bottom. If the piece is gilded, it may show signs of wear.

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Is vintage glassware safe?

Compared to modern kitchen items, vintage Pyrex — which is heavy, increasingly expensive and not dishwasher safe — doesn't seem immediately practical. Yet people remain obsessed with the old Pyrex — not just to look at but to actually use.

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What color of Depression glass is most valuable?

Cost varies significantly depending on the piece. A glass or plate may sell for under $15 while sets and larger items may run upwards of $200. Pink glass is most valuable, followed by blue and green. Rare colors such as tangerine and lavender are also worth more than common colors like yellow and amber.

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How can I tell if a vase is valuable?

Look for a mark on the bottom of the vase. Marks may reflect the name of the company that made the vase, as well as the name of its designer. When the vase has a company name and an artist's name, it may be worth more than if it simply has a company name. Marks may be inked, painted or engraved into the bottom.

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What is the rarest color of carnival glass?

According to Colleywood Carnival Glass, the following colors are among the rarest and most valuable:
  • Fenton Ambergina - a deep orange-red tone.
  • Northwood Marigold - a warm-toned deep yellow.
  • Fenton Cherry Red - a dark, glowing red.
  • Northwood Black Amethyst - a very dark purple that appears almost black.

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How do you tell cut glass from pressed glass?

Cut glass will have sharper detail with a more defined pattern, whereas pressed glass will be smoother and more worn down. Look for mold marks. Cut glass will not have any mold marks and most pressed pieces do unless they are upper-end pieces and someone took the time to remove them.

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What is the difference between flint glass and borosilicate glass?

Lead glass
It has also been called flint glass since the original formula from the 1600s used calcined flint as a source of silica, but now flint is no longer used in its creation. Due to its chemical resistance, borosilicate glass is often used for lab equipment.

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Eriberto Himichev

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What is crown glass and flint glass?

Answer: The flint and crown glasses can be differenciated on the basis of their optical properties. A crown glass exhibit low reflective index whereas, the flint glass shows the high reflective index. A crown glass is used to make the convex lens and the flint glass is used to make the concave lens.

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What color is amber glass?

Sulfur, together with carbon and iron salts, is used to form iron polysulfides and produce amber glass ranging from yellowish to almost black. In borosilicate glasses rich in boron, sulfur imparts a blue color. With calcium it yields a deep yellow color.

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Does flint glass contain lead?

Flint glass is optical glass that has relatively high refractive index and low Abbe number (high dispersion). Traditionally, flint glasses were lead glasses containing around 4–60% lead(II) oxide; however, the manufacture and disposal of these glasses were sources of pollution.

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Does pressed glass contain lead?

The majority of Pressed Glass has no lead content and was made to last and be used. It is glass and will break if you are not careful with your pieces.

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What is crown glass prism?

Crown glass is a type of optical glass used in lenses and other optical components. Crown glass is produced from alkali-lime silicates containing approximately 10% potassium oxide and is one of the earliest low dispersion glasses.

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How is pressed glass made?

Pressed glass, glassware produced by mechanically pressing molten glass into a plain or engraved mold by means of a plunger. Pressed glass can generally be distinguished from hand-cut glass because of its blunt-edged facets, mold seams (which are often removed by polishing, however), and precise, regular faceting.