So I picked one of these up from Treats. I've never owned a Puch with one so I have no idea how these are installed. Does it need some piece that goes into the handlebar to screw into? I can't figure out how these are secured. Help me Obi-Wan!
http://www.treatland.tv/NOS-puch-bar-end-mirror-p/nos-bar-end-mirror-puch.htm (edited)