I recovered this diving at Lake George N.Y. around 30 years ago. It was at the ruins of a crib dock under 2’ of bottom sediment in 10-15’ directly in front of the dock where I figured with people getting in and out of boats this would be where items were dropped overboard. There were no buildings or structures on shore for miles just wilderness. The dock was weathered down through the years to where there was nothing above the surface. Thanks for the help.
The pattern is generally called "blue Willow" and was first used in the 18th century. Your particular piece was probably made in Stffordshire, England, which was a huge pottery manufacturer for centuries. They copied the Chinese.
English made makes a lot of sense. With all the English and French influence in that area. Tons of history. Here are some more from around old crib dock ruins at the steamer stops, the blue Bromo Zeltzer was on a wreck @ 40’. Found the steamboat stops on a 1897 Stoddard chart/map of the lake.