I would like to thank Richard Duggan for his response to my previously
posted question.  His description of the process of etching glass to
get different levels is quite good.  The process I am looking for was
a method of avoiding the messy (and noxous) acid etch by simply adding
pieces of a transparent material to the back of a pane of glass to
get the different levels.  Covering the back with a reflective material
such as gold or silver leaf then finished the task.

If anyone has any information about work developed using this second
method, I would appreciate hearing about it.

Thanks very much.

Cordially
Robert W. Bradspies -- [log in to unmask] -- 310-475-0624