vintage embroidery

I found a vintage embroidered bedsheet. I plan to do a reproduction of it so what I am going to do is trace the whole design so I can embroider a new bedsheet. The old one has yellow stains…does anyone know how I can remove the stains and not harm the embroidery.?

Memories

This embroidered material is a "Japanese Kimono" saved by my mother during World War II. I love the embroidery but the kimono has been damaged and I probably would just make it into a throw pillow instead to preserve the embroidery. What do you think?

These are vintage clothing of my grandmother in the late 40’s-50’s and my mom collected and kept it for years. The embroidery is really intricate and this would look good if I frame it one by one. Maybe I will put it up in the stairwell of my new house.

Most antique items I kept are displayed there. One day I will have a bookshelf put up in that area and incorporate those antique objects my mom has kept when she was still unmarried. The contrast of brown colored antique “treasures” against the bright yellow background really looks so nice.