Etched into both sides and represented by drilled holes at one end of pcb.
Etched into component side of pcb.
overall: 3/8 in x 12 in x 17 3/8 in
Etched on component side of PCB is "Fairchild Research Division Digital Systems Dept." Object has 4.25" by 1.25" paper chart attached to component side with pressure sensitive tape. Chart describes function and settings of four position DIP switch on object. This board is similar in design and marking to boards known to be components of the Fairchild SYMBOL machine.