Has anyone ever found similar parts before on your airfield and, if so, can you help identify what they belong to? See attached images below. They range in size from 1/2" long to 1" long and about 1/2" tall. Some of the parts in the image have been damaged. Any ideas will be appreciated. I have made inquiries with aircraft mechanics and airfield maintenance mechanics. I have had no luck identifying these parts yet.
Thanks! Dave Moreau, Ops Memphis