Object is a wafer mask with four copies of a very complex circuit. It is packaged in a plastic box. Written on the label on the box is "Not inspected hold!"
Date
6/3/80
Identifying Numbers
Other number
6/13/80
Etched on top edge of glass
Other number
EMJL DATE 6/3/80
Etched on bottom edge of glass
Other number
MK4164-6A01
Etched on top edge of glass also on white label on box