A very nicely done display of quite a few transparent schematics that overlay color coded so you can see one composite image of the completed system. The piece is dated 1990 and is by Tandem Computers.

The Tandem Computers Liberty processor was a component of Tandem's NonStop computer systems, designed for fault-tolerant operation. It featured a modular design with multiple processors working in a "shared-nothing" architecture, meaning each processor had its own resources and communicated via message passing. This design, along with redundant components and failover mechanisms, enabled NonStop systems to continue operating even with hardware or software failures.

Measures -19.5” x 16” —comes with mounting cleat in the back for easy display