There are a
number of standard options for the worked shape of edges. The simplest is to have a seamed edge, where
just enough sanding is done to take the sharpness from the edge.
The next is
to have an arris where more glass is removed, usually as a chamfer, but
sometimes in a rounded, bullnose effect.
These are commonly used for glass that is to be toughened.
Flat
chamfered and often polished edges are quite common also.
Bevelled
glass is very common on mirrors as this reduces the reflection of the inside of
the frame holding the glass.
As you can
see from the attached illustration, there are a number of standard edge
treatments, although some of them are uncommon.
The seamed,
arrised and flat polished edges are easiest to create by hand grinding. The other more fancy edges require machines.
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