It sounds like a flower pattern rather then a Dresden Plate. You could make your own pattern by folding a piece of paper in half and then fold the halves into 3 equal sections. Find a round object the matches the width of the 1/3 sections and draw the curved ends, cut the curves ends with scissors and then open up the paper. You should have a 6 petalled shape. You can cut one section out and add seam allowances to the straight sides of the petal and you have your template.