Hand written on white paper label on unmderside of unit.
SERIAL # 1
Printed in white on top plate in upper left corner and on underside unit.
overall: 8 1/4 in x 26 in x 20 in
The object is a large metal circuit carier with a phenolic board mounted underneath. It has 22 vacuum tube sockets, all are populated. Various BNC jacks and two multiconductor connectors are mounted on the top. There are FOUR pairs of indicator lights on the bottom. each pair has a "0" and a "1".