Old copper coated steel bar, 3 inch diameter.

[hmmm]

Hi all
I found a steal bar that has a layer of copper coating it. It is in rocks in a salt water lagoon, i figure it is for a tie up for ships but i do not know what culture used it. Any ideas.

COME ON GUYS

there has to be someone who has some incite on this.
It is in the rocks to the right of the plate i am holding, the plate is from the early 1900's.
But there must be overlapping history.

The bar is wedged into a crevas in the rock and looks as if it was placed as a tie up loop, possibly for ships or docks.
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[shawninNY]

I looked into grounding rods they are avail in multiple sizes , 1/2 and 5/8 being most common but there are larger sizes at least 1 -3/8 , I'm thinking they could go larger for high energy apps. Like substations , if that's the end of the shaft it would have a keyway on the prop end or a flange on the motor end ,

 

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[Bigcypresshunter]

I used to work for a carnival and I had to pound the grounding rods into the ground. They were so hard to pull out that we pounded them into the ground level and left them behind. So the fields are full of them. We had to purchase new rods for every location. That was until some worker accidentally discovered the rods would come out of the ground by simply driving away with the ground wire attached. It also helped to set them at an angle,

 

[462]

Looks kinda like an artillery projectile to me!