Burgess & Leigh Pottery made a "Vermont" pattern c 1895-1912, in a floral pattern,. It would be considered a Late Victorian pattern by FBICC's definitions. The design itself has roses, leaves and buds, and is pictured in Jeffery Snyder's "Flow Blue " book, and Petra William's "Flow Blue China" vol.1.A complete tureen set would probably have consisted of the tureen and lid, an undertray, and a ladle. You might want to talk to your insurance agent about listing it under a separate rider policy: insurance/replacement values and resale values are usually quite different. You might be able to get an idea of what tureens sell for on eBay or try Replacements.com to see if they have any listing for "Vermont" and what they are selling for. It might be worth anywhere from $100-500 depending on the condition, but that is a "best guess" estimate from what we have noticed on the current market.