Technical 37 plymouth 5 window coupe headliner

Hi Guys looking for some help on my 37 Plymouth headliner install. what holds the headliner around the rear quarter windows to keep the liner tight? There is no steel teeth or even a tack strip around the window. so how does it work?

thank in advance

Rob

 

wow, has nobody got a 37 plymouth coupe that can help me out here?

 

Maybe some contact cement, stuff the moulding in and cut out the excess material over the glass (?)