A needlepoint box

Years ago, I stitched  a companion to a picture frame that contains a picture of me and my husband just before we married.  For the companion,  I had my new monogram painted inside the frame.  After I stitched it, I sent it to a finisher who used heavy cardboard for the stability of the top and bottom.  She backed the top with moire; the bottom she covered both sides with moire.  Both pieces were edged with a twisted cord of perle cotton.  The sides are a slightly lighter-weight cardboard, covered by shirred moire.