What are these holes in trunk for? 67 Barracuda

Mike do you mind posting progress pics on the rear valance?
Thanks
Steve
Thanks Alan, that answers my question. Man, all that seam sealer for that little hole. Looks like the other hole was just left open. I think I have some body plugs that size, will just plug them.
Welding on the rear valance tonight then she goes on the rotiserie.