Great vintage KapKup silverplated flask. It is marked on the bottom (under the pull-out drinking cup) KapKup Flask, nickle silver, Pat. Nov. 22, 1921. My camera does not photo well in ndetail (operator?) so this pic did not do well. Flask is about 6 1/2" tall, 4" wide, and about 1" thick and holds 12 fluid ounces. The front is covered with numerous vertical engraved lines and a triangle area for a monogram (none present). The back is plain. It has an integral hinged screw cap and removable drinking shot cup. Condition is near mint, it has a very small "BB" sized dent on front near the triangle, I suspect a good cleaning could remove much of the minor dirt but I leave that to the lucky new owner.