Originally found plugboard rack accession #102691294. There are no wires in this board. There is a dymo label on the side that says "PAY ROLL CHECKS".
International Business Machines Corporation (IBM)
||Type # stamped into the top frame and also on nameplate
||Stamped on the nameplate
overall: 3 in x 22 in x 22 7/8 in
Memory/connector / plugboard