fuel filler problems

Thanks, I see it now. It was apart when I bought the car, so I was afraid I was missing something. It doesn't stick out very far from the rubber seal, but evidently it doesn't need to.

I was thinking about all you guys having trouble w/ this yesterday when filling up my 68 fastback , which I have no trouble with at all when filling up.
Much unlike a new 68 fastback I had when I was young , it puked fuel every time , from the factory .
As I posted earlier , its a vent problem , always has been , unless ur filler tube is way low to start with , which magnifies the problem.