This is bohemian / czechoslovakian hand cut crystal. As far as I have researched it is the base of a lamp. It has what appears to be czechoslovakia embossed on the glass. Its difficult to photograph. There are no chips or cracks. There is a hole through the centre of the glass as well as an indentation around for the rim, presumable for electric cable. This is a heavy piece weighing 1.8 Kg. The other piece with the electrical fitting came with the base but does not appear to belong to it. It is also hand cut crystal. I welcome comments and questions.