what are these parts?

[CeylonstonE9]

I found these in the car after I took it out from previous restoration shop.
That runaway bankrupt idiot restoration shop guy may have mixed it with some other car, maybe not.

I am told by some other guys that they belong to my E9 but I not sure.
They were sand blasted some time ago.

Do they look familiar? If so, where do they go?
Are they supposed to be welded?

 

[eriknetherlands]

Doesn't ring any bell with me, meaning it could also be of Non-eu or CSI equipment. (My car is eu&carbed).

Left part looks like it was chopped out of a larger part. Right 2 parts look like screw-on brackets.

 

[adawil2002]

Left looks like a piece of a frame rail. The other 2 pieces look like lower rear front window brackets.

 

[eriknetherlands]

Frame rails do not have these indentations in the corners though.
( at least e9, i think, but nore sure that e3 are identical)

 

[tferrer]

Piece from the inner fender? It's got numbers stamped in it....