Handwritten on a white sticker underneath the board
Printed in white in the center of the panel
overall: 8 1/4 in x 26 in x 11 3/4 in
The object is a large metal circuit carrier with a phenolic board mounted underneath. It has 9 vacuum tube sockets, six are populated. Various BNC jacks and a multi conductor connector are mounted on the top. The string "404 COMPARISON REGISTER" printed in red on the top and the bottom.