Paul,
Your spoons were made in Sheffield 1917. They are copies of a late 17th century design called the trifid spoon with a triple lined rat-tail.
I can't quite make out the maker's mark in your picture, but if it looks like the one below then Harry Wigful is your man.
Miles
![Image](http://i64.photobucket.com/albums/h200/granmaa/hwH-1.jpg)