16 is hand written in black pen at the bottom of the rack.
The number is stamped on the metal plate at the front of the board.
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 not installed, so that the labels for the plugs are visible. There is a metal label at the front of the .board that reads, "Property of International Business Machines Corp. 901150424 Endicott, New York, U.S.A. On the opposite end of the board there is a paper label that says, "S.B.C. B/C mToT."
Memory & storage/connector / plugboard
Gift of Robert Garner, Grant Saviers, Len Shustek, Bernard Peuto and Mike Cheponis