Xarax has pointed me to the following:
Link: https://igkt.net/sm/index.php?topic=3827.msg22680#msg22680
Derived from #1408?
Is this an original creation?
Yes, so far as I'm aware. (I.e., while I
know that
*I* tied it while fiddling --though I think with actual
goal in mind, this time!

--, I can't say for sure
that someonElse hasn't done similarly.)
Beyond that then came the symmetric, "twin-eye"
versions. I did like above with the
zeppelin--i.e., had first asymmetric than symmetric finds--,
and
shakehands, and
#1452 (and the same-rotation
butterfly, with one
fig.8 half, the extra twist
getting the rotational agreement with the remaining
overhand half).
And then gazillions of other *directional* eye knots,
though I realize that that qualification comes with
some challenge : who's to say that loading it in the
*other* direction is verboten?! In CMC Rope Rescue
testing, they found the
offset fig.8 eye knot stronger
than the inline one, through loaded !
--dl*
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