Yes, try hydrogen peroxide but be careful. Just a thought on my part, it looks like she meant to hand embroider the outer border and never got around to it. (Maybe that is why those lines are there)

Fantastic! I am always so happy when someone rescues an old quilt top.

How lucky you are! The top is gorgeous! I would try and copy the marks on the opposite corner and hand embroider that design. Then hand quilt the rest, very simply. What a treasure it will be. The fabrics are amazing. So excited for you.

Try googling it, a bunch of different suggestions come up.

Beautiful quilt top for $5.00!!!

Dilute washing machine soap with water in a cup. Get a soft toothbrush. Dip and scrub.....I do this after I quilted on the lines and need to remove the pencil marks. Works every time. Happy Scrubbing!

Beautiful quilt. As for the marks would try washing with normal soap.

Beautiful quilt.

Lucky find

Beautiful, my kind of quilt. I would just spray some oxyclean on the marks and rub gently, should come out.