The number is handwritten in black in at the top of the board's frame.
The number is handwritten in pencil on a card at the front of the cover.
overall: 10 3/4 in x 6 1/2 in x 2 1/2 in
Object is a plugboard for an IBM machine such as a 519. The cover is installed and a peach colored card in the label holder reds "552".There is a metal label at the top of the card that says, "Property of International Business Machines Corp. and 590 Madison, Ave. New York, N.Y." In the middle of the label there is Dymo label that says, "Tas L.". At the bottom of the board there are remnants of the white sticker.
Memory & storage/connector / plugboard
Gift of Robert Garner, Grant Saviers, Len Shustek, Bernard Peuto and Mike Cheponis