Random Thoughts on Framing On the subject of to glass or not to glass, here are some points to consider. Glass will cut the effectiveness of any metallic threads and beads there might be in the piece. While glass protects it also hides. If you have a hoop ring or a dirty spot you just can't get out, put glass on the piece particularly non glare glass. Never ever put glass directly on the work.
Needlework needs to breath.
Mats will lift the glass off the work sufficiently for our purposes. If the piece has no mats then use channel spacers. This is a clear plastic rod that is stuck to the frame and glass to hold the needlework away from the glass. Ban all cardboard on the piece as it is laden with acid. Use mat board in it's place.