This set of AG Thornton Ltd drafting tools came from a neighbor of my grandfather.  He was older than my grandfather by quite a few years so I am placing this around or before WWII.  His name is engraved on a metal plaque on the top.  All pieces appear to be intact.  Wear to case and lining as can be seen in the photo. 

Case measures 8 inches by 5 inches, by 2 inches.