Barrister's stacking bookcase circa 1900 - $800 (Olympia)

This bookcase is in really good shape.
Nice workmanship by a Chicago company called Rockwell Wabash, according to a stamp on the back.
Could find very few references, but some seemed to indicate that it produced nice office furniture for a dozen or so years around the turn of the last century.
Might have been combined with other makers later.
Didn't see any other stacking bookcases from them online.
It is 76 5/8 inches tall It's 34 1/2 inches wide.
There is a base with a drawer in it There is a cap piece that nests on top.
There are five shelves.
They go together nicely and open and close well.
The bottom shelf section is a little deeper than the rest, about nine inches, compared to about seven inches.