Early "A" Body Vent Wing Bolts

I can take a picture tomorrow, really not necessary, there is nothing there. The bolt I have was just started in window assy. threads, it would not hold anything. The plate I am thinking should sit on top of the rectangular openings in the door to allow adjustment of the vent window. Is this correct? Thanks again...
theres a little slot it slides into then the allen heads come in from diffrent square openings see if the service manual shows it?