Project- Bills Buggy

I have another question.. anyone out there have any extra sail panel emblems laying around (ones with both posts still intact) and can anyone tell me how these were held on from the factory? I know they didnt use speed nuts or anything like that on the sail panel, cause while my headliner was out I reached in there only to find structure in the way of the the holes.. no way to tighten anything up... I am guessing there was some kind of clip used, which would explain why all the sail panel emblems I find have broken posts LOL... I have one with both posts (the one in the picture.. which is just pushed into place for the picture) ... anyhoo.. anyone with info let me know.. thanks