The object is a large metal circuit carrier with a phenolic board mounted underneath. It has ten vacuum tube sockets, nine are populated. Various BNC jacks and two multiconductor connectors are mounted on the top. There are two pairs of indicator lights on the bottom. The labeling of these indicators and many of the BNC connectors suggest that this register has two flip-flops, identified as "A" and "B". The power connector is still intact.
