Maybe you could try an antique valuer who specialises in textiles...maybe a large museum could point you in the right direction.
That being said...unless you are going to display it or keep it as is as some sort of investment...why not put it in a quilt? Sometimes when I look at estate sales or auctions, many beautiful things are sold off after someone has passed away and you can see the items have been locked away and never been enjoyed by the person who owned them.
My Nan would probably be slightly peeved if she could see me use her best china jug for putting flowers in...but everytime I see it "blossoming" away I think of her...maybe she wouldn't mind after all.