I have seen some universal metal frame helm seats with a center tie-down.
Are these threaded and would accept an eye bolt? That is how the ones I've seen attach via a hook, chain & turnbuckle or similar arrangement.
Might be for a double seat or 2 singles? Still no idea why not in line?
Here's what I am thinking...and wonder if the off set was to place 2 seats close to each other and avoid legs interfering? Offset and they sort of nest closer???
What are the hooks for alongside the magazine rack?
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