356 Aft Cabin - how to remove upholstered window valances

[amyelias]

Hello,

I have re-upholstered the valances in the salon and am moving to the aft stateroom but have not figured out how to remove the upper horizontal valances from either the aft window or the port side portholes. download/file.php?mode=view&id=6414

I have removed the blind/blind brackets which allowed me to remove a painted header that the blind attaches to which gave me access to where I thought the valance attached. I do find several screws which go through the lighter colored mounting? piece and apparently into the valance but there is no access to remove them. I tried a 90 deg screw driver but couldn't keep the driver bit in the head of the screw due to space constraints - this would take hours to remove the screws. I'm thinking there was a different way these were initially installed.

Any thoughts/suggestions/ tips would be appreciated.