This knot is closely related to ABoK 1452 - only the final tuck is different.
Hmmm, IMO, there's an ample difference as manifest
at your third image in the Reply#1:: tying #1452 by first making
an overhand in one end, and then reeving the 2nd end into
this, the blue line would come rightwards up to cross over
the red tail and turn clockwise back under two red parts
to where the shown blue X/crossing is, ... and so on --which
it much differs from in the presented case.
IMO, the tying of all these interlocked-overhands knots
is best done by making an initial
overhand knot in one
end and then reeving in the other per whichever result
is wanted :
Ashley's 1452, 1408, 1425, zeppelin, SmitHunters',
shakehands, .... Ashley, i.p., makes an ambiguous presentation
of *his* knot, leaving it for others to point out the refinements
which can have effects on behavior. (Long ago one person
posted here about #1452 jamming and it took a while to
realized what version he'd used; most of them do NOT jam.)
--dl*
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