hand washed washed in a river and rubbed against a stone
to remove stains etc; there won't be washing powder available.
I allow a one inch seam allowance for each side seam of the dress.
Sew again with the RIGHT sides together but this time use the outer edge of your machine foot as a guide. Raw edges are now encased and are unlikely to unravel.
the seam visible on the right side of the dress
but it's a neat seam and does not look out of place.
Note to self - In future polish the fluff off machine before taking photos!!!