I was a machinist at Grimes aerospace in Urbana Ohio. They made interior and exterior lighting and had about 65% of all Western made aircraft manufactured in the world with their products . They also made lighting and the wing tips like the one in the photo.
While working there I get into inspection and had to learn how to pot the lens into place. The numbers should be searchable through the FAA I don’t recall how the numbering system works now.
The answer is in the number.
