I have no clue either, but if they were from a boat shouldn't they say 'port' and 'starboard' instead of left and right?No clue, but it gives me a boat vibe. Here for the knowledge.
Not at all, I was just surprised someone here hasn’t figured it out. It’s not often garage journal gets stumped.One half looks like it might be a gunnel clamp, but that other half with the blind throat....
Old Man? You holdin' out on us?
Cast aluminum was quite common for things like lantern holder brackets for night fishing. Bronze is most common for salt-water vessels.Older boat fixtures are usually brass.