Drinking flask

Description

FIG. 1 is a front elevation view of a drinking flask showing our new design; the rear being a mirror image thereof;

FIG. 2 is a left side elevation view of the drinking flask of FIG. 1;

FIG. 3 is a right side elevation view of the drinking flask of FIG. 1;

FIG. 4 is a top view of the drinking flask of FIG. 1;

FIG. 5 is a bottom view of the drinking flask of FIG. 1; and,

FIG. 6 is a top perspective view of the drinking flask of FIG. 1.

The broken lines depict portions of the article that form no part of the claimed design.

Claims

The ornamental design for a drinking flask, as shown and described.