Here are the cases available at the Worcester Public Library for displaying artwork.
There are two areas for display, with the cafe in between them. First, the center-main-floor area. This area has two rows of two floor cases each (on tables) and then two vertical (wall) cases behind them. Six cases total. In this image you are looking down on top of the four floor cases and then looking straight-on at the two wall cases on the top.
To help visualize this, here are photos of those cases.
Next up, by the doors there is an area with two tabletop cases and then two wall cases. Again, the tabletop cases are shown with a top-down view and the wall cases are shown from a side-on view.