Thick Metal Square With A Hole

[Natman]

Hi, dug this in an old yard from 1800s...solid and kind of heavy with a hole. Measures 1" x 1 1/8", about 1/4" thick. Maybe made of brass. Ideas welcome.
Nat

 

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[Back-of-the-boat]

Pretty sure it is a cable lock.The cable goes in one side and teeth keep it from coming back out.Can't remember the different uses for them, could be telephone line related.

 

[Natman]

Thanks for the reply. Still not sure though...it only has one hole, is that typical for that type of lock?

 

[A2coins]

interesting for sure

 

[Back-of-the-boat]

I mistakenly called it a cable lock.Google cable seal.More than likely the steel cable has rusted away and all you are left with is the brass locking piece.

 

[HuntinDog]

Does the hole go all the way through??