Help with Guns

Hope someone can help with this: http://img.photobucket.com/albums/v72/ussarcadia/guns.jpg

What are these from. They are 3/8" back to tip of barrels. Came from my parts bin from years ago and need more of these. Thanks.

those look like twin 3" guns from the revell model of the gun missile criuser uss canberra as i have that model.

I do remember a GM cruiser, a different name though. Is that kit still available? And thanks for the reply. Oh, and what scale is that in?

Found it. It was the USS Boston, 1/480 scale. Too pricey to dig up one on evilbay just for the guns. I may have to try to cast a few up.