'Claude Lorraine glass' definitions:

Definition of 'Claude Lorraine glass'

From: GCIDE

Claude Lorraine glass \Claude" Lor*raine" glass`\ [Its name is supposed to be derived from the similarity of the effects it gives to those of a picture by Claude Lorrain (often written Lorraine).] A slightly convex mirror, commonly of black glass, used as a toy for viewing the reflected landscape. [1913 Webster]