Re: Where does this go...?
I think it was a boom-end topping lift/boom height adjustment.
Crappy line, lousy blocks.. probably not worth hanging on to.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)