You had better give larger area of the inscription.
It is very unlikely that it has to do with 太安万侶, IMO.

In article <YoidndkRaJvqOUrdRVn-uA@comcast.com>, 
"SS" <itaTAKEzuTHISra_da@hotOUTmail.com> wrote:

:Hello -- a friend of mine is interested in antiques and recently purchased
:what was described as a Japanese sword.  The authenticity and date of the
:sword are both very much in question.  On the sword is the inscription ???
:( ? is written with an older version of the radical).  In this context, what
:is the likely reading of this name, and does it shed any light on the age or
:authenticity of the sword?  I know that the most common "current" reading
:for ?? would be ????, but in this setting, I was wondering if the name might
:more likely be something along the lines of ???????, (cf., ???? -- ????????.
:I know very little about Japanese antiques or swords, and would be thankful
:for any feedback that might help my friend better appreciate her purchase.
:I have uploaded a small picture of a pencil rubbing of the inscription here:
:http://www.jetranslation.com/sword/sword inscription.jpg .
:
:Thank you for your help -- SS