I recently posted a picture of my Darne R10 and got a lot of help here. But you need photos, and you're post doesn't get it done.

Check out the Darne thread below here. Took me a while (and some encouragement) to get the barrels off, now once done, it's simple. The model # will be on the front of the action.

They are, IMO, supreme shotguns. Very light-weight and strong.