>The rubber around car windows?
That's probably as close as anyone is going to get. They are for the rubber gasket used in bus and truck windows, before the type with a seperate bead that you put in the middle. (The tool in my picture is for the bead type, it slides the rubber bead into the space in the window gasket to lock it into place.
Papaws' tool is for the older stuff, which was made sort of like a zipper, one piece locks into the other , the roller and pin fold the outer piece into the inner piece locking them together.
They were quite common on old school bus windows (winshield, not the slide windows) which is why you may have ridden in the thing that it was used on...
The gasket was also common on bread trucks, construction equipment, cranes etc. We still occasionally fix them, as long as the glass is flat, we can custom cut auto safety glass for replacements.
(Getting the 60 ft crane into the glass shop was a challenge tho)
PS: papaw, if it needs a home, pm me ; P
