Hi cousin...

I have two packets of (almost) 100 year old glass plates (Gevaert and Lumiere) that are 9x12 in size. Would they fit in one of your holders ? Would the holder then fit in one of my 4x5 cameras (even with the help of a home-made adaptor) ?? Then I would surely be interested, because the only other way I thought of using them in-camera would be to use double-sided tape and stick them on 4x5 holders (fidelity), but that's a drag...