A friend told me that it looks like some of the fabrics date to 1830-1880 based on pictures in Eileen Trestain's Dating Fabrics: A Color Guide 1800-1960. It has sort of a "my ancestors were English" look to it, don't you think?
It isn't in as good shape as it looks in the pictures, lumpy batting, some fabrics shattered, etc. It is mostly fascinating because of the enormous variety of prints. I may pick it apart to have a supply of antique fabrics to make small wall hangings with and to keep as a little repository for fabric study. It is hand-pieced, of course, and tied rather than quilted, so the picking won't be too bad.