[Kenneth F. Besso Jr.]

I believe,, they are clips-- that flip open---out-----BUT could be __WRONG,,,,and they JUST ,,lift a little to get glass out??????//// they also look like fansworth clips,,,with a little wedge in them ,,to hold that main part tight,,and down ,or against the glass,,,,,Can't really tell from this point of vision,,,----hope that may HELP-----CHEERS