Several solid brass parts found in ocean

[dennis mills]

Does anyone know the estimated age of these parts? The long pin fits into the broken brass rectangle. The end is mushroomed from hammering. The small pin is tapered, just under 5” long. It is four sided and the head is also mushroomed from hammering. The brass/bronze gear is just that, nothing special.

 

[vpnavy]

Does anyone know...

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