Military Surplus breadboarding and prototyping supplies acquired circa 1980's. This category is broad enough that it actually covers the entire lab. The collection spans decades of collecting what other r&d labs surplussed (discarded). Meaning... There is an unusually unique collection of items. Many things not found in a primarily-manufacturer's research laboratories. Something suitable for any design. Something you wouldn't have imagined until you saw it rumaging through the drawers. Something just perfect for tommorow's design review or trade show.
There is a few cheap sockets and plugs and jacks.
And heatsync and spacers and terminals.
And more terminals and pins for connectors or feedthru.
And more spacers and standoffs.
Pictures alone can't describe the quality of the breadboarding support. Sadly... It rests on shelves and in drawers. It was the best equiped prototyping lab I ever worked in. And that includes the finest of the 'big boys'.