help ID Iron objects, maybe Old jail cuffs? or old cannon pieces

[Klclark3]

could someone help Identify? (: thank you,

 

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[Klclark3]

Anyone know?

 

[TheCannonballGuy]

Because you asked if the objects are "cannon pieces"... in my professional opinion, they are not artillery-related in any way (not pieces of a cannon, nor pieces of an artillery projectile, etc).