1994 SL500 Bumper grill?insert thing missing??

I have an 1994 SL 500 as listed above that is missing an insert on the left front bumper as you face the car? (about in the middle of the bumper vertically (and left passenger side horizontally) Two questions:

1. Can someone tell me the correct name for the part that is missing? I dont even know what to ask for when I go to look for it.

2. Can someone tell me where I can find the part used, preferabley?

Thanks for a fast response!!