Here are some sites that might be helpful.
http://www.quilthistory.com/dating_quilts.htm
http://www.antiquequiltdating.com/
http://www.reproductionfabrics.com/lines.php?subcat=27
http://www.quilthistory.com/dating_quilts.htm
http://www.antiquequiltdating.com/
http://www.reproductionfabrics.com/lines.php?subcat=27