CannonballGuy - Help Please

[the_great_waldo]

You have helped me identify shell fragments I have found when detecting. My friend bought these at a shop in VA. Any insight?

 

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[TheCannonballGuy]

The 1st and 3rd photos seem to be showing the same fragment... a portion of the fuze-hole from a 12-Pounder (4.62"-caliber) US Bormann-fuzed roundshell (cannonball).

To ID the fragment in the 2nd photo, I need to see its other side, and a view of the non-threaded end. Also need accurate measurement of its length.