It, the cabinet, not the cat, came out of my Dad's house and I had assumed it was an old New England piece. I always thought it had come out of my grandparents house from the early part of the 1900's. My folks always called it a barrister bookcase. The bottom three units have plain glass and all the units have these interesting brass straps and corner decorations.   I don't know if they were all originally leaded, or if the top was a replacement piece.