How to strip copper from a constant motor

I'll try to get a photo. I know what you're saying, but I think this is different--its on a long spindle and is all wrapped around. I've never done a photo so I'll give it a try!

Here are the photos. I've messed with these a couple of times and just can't seem to get the copper out. First picture is the casing of another similar motor. Second and third picture are different views out of the casing. Look at the third picture and how it is all wrapped around the spindle....any tips would be great!

Not an easy way, but I used to use a chop saw to cut one end off. With the price of copper down now, I also throw them in with my motors and concentrate on regular motors which are much easier to get the copper out.