I am looking for specs on this Process/Graphics Arts lens made by Nikon. Have co ntacted Nikon here and in Japan, and they can't even acknowledge that it was eve r made. The serial number is #180118. I have a pic of it at: http://www.geocities.com/scorman/micronik.jpg
I will presume it is early 1980s vintage manufacture.
Thanks for any info related to this hunk of glass.