I love vintage brooches and try to wear them on jackets often
i have turned their storage into a display with this project
a piece of corduroy and contrast linen which was three inches longer and wider were sandwiched (right sides OUT) around some batting so that the corduroy was centered on the bigger fabric giving an equal border.
the border was pressed in half and then folded over the edge of the cord and pressed agin then pinned in place, creating the look of bias binding
I top stitched around the frame that was created (twice, once at the crease and once on the outer edge to sharpen it up).
the corners were folded as hospital corners on a bed with the long edges on top, to create a mitre effect but these were left unsewn so I could poke a curtain rod through the channel created when I sewed the frame
I threaded cord through the convenient hole in each end of the slim metal curtain rod (an adjustable one designed for net curtains) -and knotted it to secure it