Division Post Seal

[LDO]

I tried a search and came up empty so while I wait for my manual to come in the mail, here goes.

1957 3100 Division post seal. The chrome vent window assembly has some raised bosses and it appears that the previous owner just glued the old division post seals on. My question is this, is glue used to install these, just rivets or a combination. Also, when using rivets, I assume you rivet from inside the channel (door glass side) and can I just use regular pop rivets if I can get my rivet gun to fit? It seems like the rivets would show from the seal side...won't that interfere with the vent window sealing up against the seal itself????

I sure hope i've explained this properly for those of you willing to answer. I can provide pictures in the morning if needed..

thanks,
LDO