I have a top from the late 1800's that I washed. I wish I could have seen the look on my face when I realized what I'd done. I get it out about every 5 years and work on trimming and pressing.
One totally fun thing you could do is quilt it that side up, just press it good so it lies flat.
A one of a kind rag quilt. Quilt it about 2" apart. Straight line quilting would go great with a service quilt!