Which Piece to Save?

Is there something difficult about saving both? Is this a gasket with a lock strip to open up and then remove glass?

It is the biscuit style gasket, and usually pretty hard to get both out intact. I have another gasket I’d like to put this against and see if they’re the same, it’s been awhile since I’ve taken one out of a sedan. They don’t repop the sedan gasket so I’d like to save it if I can.