- Blown plate
Blown plate is one of many types of hand-blown
glass . It is made frombroad sheet glass by laboriously hand grinding and polishing both surfaces. Blown plate is of a sufficient quality and size for mirrors and coach glasses.Other methods for making hand-blown glass included:
broad sheet , crown glass,polished plate andcylinder blown sheet . These methods of manufacture lasted at least until the end of the 19th century. The early 20th century marked the move away from hand-blown to machine manufactured glass such asrolled plate ,machine drawn cylinder sheet ,flat drawn sheet ,single and twin ground polished plate andfloat glass .There is a record of blown plate being produced in
London in 1620.ources
# cite web | title=Hand-blown glass: manufacturing process | work=London Crown Glass Company | url=http://www.londoncrownglass.co.uk/Manufacturing.html | accessdate=December 30 | accessyear=2005
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