'66 front wheel well rubber/metal cover below air cowl vent

[kx57]

So on our '66 C10 there is a area where the front wheel well/inner fender/cab/fender all join at the bottom.

See this picture. (this isn't our truck..but shows the spot)



Left hand side of the photo.

When you put the fender on there is an area here that looks like it would easily collect dirt/debris.

What is supposed to cover this area?

-I don't see anything on LMC truck other than the air vent cowl..this is below that...

-I don't see anything on image searches that indicates there is anything there to cover the void....

Does anyone have any photos of this area with the fender installed?

I did a few forum searches..I can't find anything for this vintage that shows what I'm talking about. Lots of threads about welding up the air vents..but that isn't what I'm looking at.