The goldy amber one is Scandinavian, but the designer and manufacturer is undefined as far as I know. It could be Riihimaki.
The purple/lilac plate is neodymium glass I think. See if it changes colour (from lilac to greyish) under different lighting condition ie from daylight to artificial light. Also see if it flouresces (can't spell that) under UV. Search the boards for 'Neodymium' or 'Dichroic by Design'.