Family heirloom, passed down from ancestor born at Hutton-Cranswick, Yorkshire, in 1776. who made eleven passages from England to United States and brought his family to USA in 1819. Teaspoon has always been known as "the Swales spoon" and has an emblem which appears to represent ancestor and his wife.
Spoon shows, on upper top of handle, the letter "S" with letters "W-S" below; we believe these represent the family name S= Swales) and the husband & wife (William & Sarah).
The teaspoon is about 5 inches from tip to top, with only four silver hallmarks on the reverse of the handle.
We would very much appreciate anything you might be able to identify... we believe the marks for sterling and George III are clear, placing the date between 1786 and 1821 (which would fit the timing between the birth of William Swales and the year he brought his family to the USA.) The other marks we cannot recognize.
Thank you for any help you may offer.