What (Mugen) is this ??

[Nard Cox]

I bought something cheap off of eBay; an incomplete roller. He said it was a Mugen and I'm guessing it's an ancient one. Do you guys have any idea what this is?

It's completely apart since it used to be a nitro and I cleaned it.

Pics

Thanks guys!

ps. Will not post the pictures here since the forum doesn't handle large images as good and with low res you can't see what's on it.