Artillery shell and balls, Yea or Nay?

[fyrffytr1]

I purchased my brothers collection a few years ago but let him keep it with the understanding that if something happened to him first I would get it and if I passed before him he would keep it. Sadly, I took possession of what relics he had left and now will need help with some of them.
I will start with three projectiles. The larger of the two round balls is 3.5" in diameter and weighs 5lb 14oz on my postal scales. The smaller ball is 3" and weighs 4lb 3oz. Both balls have a seam in them. In the picture the seam is running vertically on both pieces. The seam is harder to see on the 3.5" ball but it is there.
The shell is about 9"s long, 3" in diameter and weighs 13.6lbs on my bathroom scales. I don't have a scale to accurately measure its weight. I am pretty sure the large ball and the shell are projectiles but the small ball I question.
Any help in IDing them with there correct names is much appreciated.

 

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[fyrffytr1]

The cannon ball guy and NOLA ken identified my projectiles in the "what is it" forum. Large round ball is good. Small one is not and the shell is a 75mm from WWii.

 

[Force_of_Iron]

The projectile head is off a cased munition. Don't know that stuff very well to date it but pretty sure it sat on a brass shell casing at some time. It has never been fired it has been removed/ disarmed and then lost somewhere, or perhaps just poorly stored in some ones shed or the like

 

[Davers]

I purchased my brothers collection a few years ago but let him keep it with the understanding that if something happened to him first I would get it and if I passed before him he would keep it. Sadly, I took possession of what relics he had left and now will need help with some of them.
I will start with three projectiles. The larger of the two round balls is 3.5" in diameter and weighs 5lb 14oz on my postal scales. The smaller ball is 3" and weighs 4lb 3oz. Both balls have a seam in them. In the picture the seam is running vertically on both pieces. The seam is harder to see on the 3.5" ball but it is there.
The shell is about 9"s long, 3" in diameter and weighs 13.6lbs on my bathroom scales. I don't have a scale to accurately measure its weight. I am pretty sure the large ball and the shell are projectiles but the small ball I question.
Any help in IDing them with there correct names is much appreciated.

Man .
I wish that I could help but I have dug only frags , so I never have studied Artillery Shells the way I should have.

Hope TCBG has answered by now , ill check asap .

I'm still stunned bout yr brother but I Believe He is with The / His Lord.

 

[RustyRelics]

That big shell is from WWII, but I don't know what kind it is.

 

[fyrffytr1]

That big shell is from WWII, but I don't know what kind it is.

It's a 75mm and is from wwII.