WHAT YEAR GAS TANK IS THIS!?!? It's driving me crazy!

[Chasereck]

I really want to know what year this CB750 tank is because I love the shape of the gas tank and this Cafe racer / bobber style.  These are screen shots off of a youtube video. it says its a 1983 CB750 but I cant find a tank that looks like this when I look for that year on google images. I thought it might be a chopped up version of the 1983 CB750 K gas tank but I cant tell.  Ill put the video link below. Please help honda CB people!! Thanks!

http://www.youtube.com/watch?v=6aWY5KdiXeQ&feature=related

[DesignBuild]

mines a 82 cb750F and this looks like the same tank as mine.

[Andyt59]

I've looked at a couple of '79 bikes with this same tank on it... I have one I'm NOT going to use if you are interested in it. Give me a call. 208-869-7045
-Andy