Laser usually makes a perfect etch. It's different depths like it was mechanically made.

Originally Posted by Hugh Jorgan
Originally Posted by 5thAve
The letters all look close but not identical. Being aluminum it could easily be a good engraver with a template to follow or at the very least it was a machine that was following something hand done. The rows line up perfectly but you also see that in old hand done engineering drawings.



A Pantograph maybe? work


Unless maybe someone did the lettering first and then engraved over it?