QUOTE(Tom_T @ Jun 18 2014, 09:52 AM)
At the factory it was just masked out with tape when painted & left bare metal to stamp the VIN.
You can recreate that look by scoring the paint with an Xacto knife & straight edge along the faint flat area, then masking the outer area, & then using Q-tips & acetone to carefully bubble & peel the area to bare metal.
However, you'll want to immediately protect it with something like either clear Rustoleum, or else regularly give it a thin film swipe of WD40/3-in-1 Oil/etc.
Thank You Tom just the answer I was looking for