Yes im new to this but i have an Alfred Dunhill Book Flask. 46 is engraved above the name Alfred Dunhill below it says Made in England L91/8OZ. On the "binding" of the book flask it says Laughing Water and the Author name Strongfellow. Iv tried to research Dunhill but most of the antiques i find of his are tobacco related and nothing to do with flasks. I can upload pictures if that would help.