Battery location in the Nikon F?

I got this lovely Nikon F from my grandmother but, I don't know a whole lot about it. I haven't the slightest clue where the batteries would go, our what sort it'd need (though I understand 1.5v batteries could work). Any help is much appreciated!

Search the bottom of the camera for any signs of openings.

As far as I know, it doesn't need one. The Nikon F doesn't have a built-in lightmeter.

As far as the bottom of the camera is concerned, you pull the whole thing out together with the back to load the film.

Unless you have a Photomtic head, you don't need batteries.

The Nikon F was a classic workhorse all-mechanical camera what was on my wish list when I first got into 35mm photography. As such, the basic camera body never had a battery, since there were no electronics.

However, Nikon updated the F with a series of Photomic heads, each containing a light meter that read the light from the subject image.
http://www.cameraquest.com/nfinder.htm

If you need the replacement battery, then use this, as the mercury batteries originally spec'd for the Photomic head are now banned.
http://www.amazon.com/...00009VQJ7/

If it is truly a Nikon F (first produced 1959, until late 1960s) then it is an entirely mechanical canera not needing batteries. If there's a prism with meter built-in (a later accessory addition) then the prism will contain the battery, so look at the pentaprism on top of the camera - the battery would be a 'button' battery about half an inch across and very shallow, like a button, so look for a cover about that size, probably with a slot for a coin to undo it. Depending on type such batteries may be difficult to get hold of these days. But indeeed there may be no need for a battery if it is a basic Nikon F with no meter in the prism.