Found of silver metal "POWER UNIT" label at the back. This is a type number.
Found at the center back bottom of the unit.
overall: 67 1/4 in x 60 in x 32 1/4 in
This object is part of the 709 system donated by Paul Pierce. The object has six removable side panels with the latch released by a 3/16th Allan wrench. The upper left hand corner of the machine has a blue black and silver IBM label that reads "IBM 755 Tape control unit". The upper right hand corner of the front has a control board with numerous switches and buttons.