In the first category of lamps I shows free build Bonsai
glass Trees. To build this complex form all pieces had to have mitres around.
The Lamp-Gallery shows in the second category light fixtures made out of a polished agate slice and one piece of glass.
The glass plate was cut into long, small stripes, grindet to mitre and formed to a column. On the top of this is the agate slice. This construction allows to build only unique objects but it is very difficult. Sometimes a piece of glass break. This will means the end for this lamp and I had to restart another.