Hi Tokailefty,
When you say the T-style logo do you mean the spaghetti logo?
Can you give us some more info on it:
e.g.
Fretboard - maple or rosewood?
Headstock shape - fender or pointed?
Colour?
Bridge - 3-way or 6-way?
etc....
Does it have a numbered oval sticker on the back of the neck?
Does it have anything on the base of the pickups or in the pickup cavities?
All these things can help to discover what model it is and thus date it.
Also take a look on the catalogs page at http://www.tokairegistry.com and see if you can find your guitar in there.
James