Could be a start of a quilt or a pillow or tapestry. Very cool has silk and velvet but also they used old letters with handwriting to support back of the fabric pieces! Super cool it makes me think it is a love letter woven in for a loved one. Paper and handwriting looks to be late Victorian or early 1900s.
19x19 inches size in item specifics wouldn't let me put right size so I picked closest.