It looks really good in the pictures. I thought you might be interested in this from Joe Houser.
"The 402 Akonua was introduced in about 1972. From
the few records that we have, it appears as though the
402 was started in 1971 but Buck did not actually
ship any until 1972. I have no evidence of a two line
Akonua and it is not very likely that one exists. The
first known variation of the 402 is the same as the
three line 401. It will be marked with an inverted
BUCK, AKONUA, U.S.A. and have the same wide
grained micarta handles. From this point on, both
models share the same path. The only difference is
that the 402 was never offered in a hinged box.
Sometime shortly after the introduction of the 402,
the stamp on both models was changed to the standard
3 line read with the tip pointed up. The handle
will now be the more familiar tight grained black
micarta. These minor changes probably occurred in
about 1973. This configuration went basically
unchanged on both models up until sometime in 1981
when the handle was changed to “Impregnated
Birch”.
The only exception to this would be the curious burgundy
micarta versions seen from time to time."