| 1. | This would eventually dispose the previous working method of Crown glass.
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| 2. | Crown glass is one of many types of hand-blown glass.
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| 3. | The original Georgian crown glass sash windows with glazing bars no longer exist.
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| 4. | As a result, crown glass was not made in London until 1678.
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| 5. | The Crown glass process was used up to the mid-19th century.
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| 6. | Fraunhofer therefore made his own crown glass.
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| 7. | Schott glasses have higher refractive index than soda-lime crown glass without higher dispersion.
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| 8. | Glassworks such as the South Boston Crown Glass Company manufactured flint glass in South Boston.
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| 9. | Crown glass was one of the two most common processes for making window glass until the 19th century.
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| 10. | One of the earliest methods of glass window manufacture was the " crown glass " method.
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