"Digits" printed in the top left corner on the front.
Other number
403
Printed in red in the top left corner near the words "in out resiter".
Other number
A9-4
Printed on the back.
Serial number
9
Printed in the top left corner on the front.
Dimensions
overall: 16 in x 26 in x 8 1/2 in
Description
The object is a metal panel bearing sockets for 12 octal tubes (three are populated and one for "V-2 74K7" is bagged separately) and a number of coaxial connectors. There is an printed label in upper left, and on rear circuit board, reads 303 B REGISTER DIGITS 0-15 SERIAL # 9". Partly obscured on both labels is "403 in out register".
