They reached their popularity in late 1800's. They were NOT meant to be washed. Meant to be laid over the back of something in the parlour. That is why many are smaller than a normal size. Also meant to display a woman's needle work skills with the embroidery. Do not, not not dry clean it!! Check out this link from the Smithsonianason.
https://www.si.edu/faqs/quilt-care
I would never do that to a cotton quilt, let alone more delicate fabric
Best (general) way to clean it is with a vacuum and pantyhose over the end, to protect the quilt while you vacuum up dirt.l This link should tell you what you need to know.
**If they delete the link, search for Smithsonian and
Care of Victorian Silk Quilts and Slumber Throws