The object has an ivory board with several integrated circuits and other active and passive components. There is also a circuit printed in solder on both sides of the board. On the solder side there is a handwritten "X" in the insertion end left corner.
Date
1981 ca.
Manufacturer
Passport Designs, Inc.
Identifying Numbers
Other number
1050
Hnadwritten in black at the top of the card on the solder side
Other number
1981
Copyright date printed at top of card next to the manufacturer