✅ SOLVED Does anyone knows what part of a ship is this and what was used for?

[Pichifliguen]

Hi..I have recently found this object while Scuba Diving in what I suspect to be a wreck site.. I don't know what part of a ship and what was used for and I'll appreciate is someone can help me identify it.
Thanks!

It looks like this close to the one on the picture below but smaller.

 

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[Pichifliguen]

I figured this one out.. It is what in present times we call a "Chain plate" which it is the thick iron plate bolted to the sides of the ship to which the chains and deadeyes are attached in a sailboat.
Cheers1