It is missing a pin or two also. It may be missing a handle on one side but I don't see indications of it. The only markings I can see are a B J on the flag on top of the sail. I believe they call large ones like this banquet molds. I have seen a similar mold by E & Co.
Very rare to find them in this size. The item "VERY RARE LARGE 19TH CENTURY BANQUET PEWTER ICE CREAM MOLD SAIL BOAT 11" is in sale since Wednesday, May 22, 2019. This item is in the category "Collectibles\Kitchen & Home\Kitchenware\Molds".
The seller is "cranberrygirl" and is located in Franklin, New Jersey. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Aruba, Saint kitts and nevis, Turks and caicos islands, Bermuda, Jordan, Oman, Peru, Viet nam, Uruguay, Russian federation.