Barrister bookcase

Can anyone help me with what I have? It's a lawyers/ barristers bookcase with only the name Widman. The back says J.C. Widman Co. Detroit Mi. All I can find on the web is Humphrey Widman, which is when they merged in 1910. Anyway, I cannot find any comparables with the same early Widman bookcases. Each bookcase is separate, with original glass, scissor hinges, and hardware. 4 sections, a top, and bottom. Found it at an estate sale, cleaned it up and the best 150 I ever spent. It's beautiful and original, yet works great! Any more info would be great if you know anything about it. Thanks!