Brittania metal (a pewter alloy) flask made by James Dixon and Sons, Sheffield, dating from about 1880 - 1890. The flask measures 4.5" x 8.25" x 2.5", and has a removable top that would be used as a cup. The small stopper cover for the flask is missing. It is my understanding that older flasks had a cork and a metal cover (newer ones would have a screw top.) This is a very large flask, holding 43 ounces - if you cannot picture 43 ounces - this is over 5 cups! That's a lot of whiskey or brandy.
The flask is stamped on the bottom, “Made In England, James Dixon and Sons, Sheffield, 1387, 43 ozs,” and also stamped the Dixon’s banner and horn mark. In good condition, with scattered scratches and scuffing, scattered light pitting and tarnishing, and several very minor dents. All aspects of the flask are shown in the photos.
No polishing has been done, so the original finish and patina remain.