This is a lovely silk Pineapple quilt. There are lots of wonderful colors, still bright and clear. This quilt definitely puts to rest the view of antique fabrics as drab and basically brown! In the 1700s and 1800s, the pineapple was often used as a symbol of hospitality. I've also sometimes heard this pattern called Windmill.
It's super large - about 81" x 92". Older quilts, meaning earlier on in the 19th century, are sometimes quite large because they were made for very high bedframe with trundle beds stored underneath.
Most of the fabrics are silk, with a few velvets in the mix. They are in pretty good condition. All I did for the quilt was to vacuum it to clear out old dust and freshen it up. Visit this post for instructions for vacuuming quilts.