Aunty Biscuit is having a grand clear out and rearrangement, she apparently does this on a regular basis of every 10 years or so.  She has found a piece of cross stitch fabric with about 20 stitches done in three different shades of grey, no threads or pattern with it.  She has absolutely no idea what it is supposed to be or where the rest of it is.  Any suggestions are welcome.  First prize is a secondhand piece of cross stitch fabric, slightly used.