The ornamental design for a double wedge axe, as shown and described.
FIG. 1 is an isometric view of a double axe wedge illustrating the ornamental features of the front of the axe with an axe wedge, and further illustrating a hookaroon extending from the backside of the wedge;
FIG. 2 is a left front-side view of the double axe wedge illustrating the side features of the axe including the hookaroon extending from the back left, and the wedged front with an outwardly extending protrusion;
FIG. 3 is a right front-side view of the double axe wedge illustrating the side features of the axe including the hookaroon extending from the back left, and the wedged front with an outwardly extending protrusion;
FIG. 4 is a top view of the double wedge axe illustrating the top features of the axe with an outwardly extending protrusion from the front wedge;
FIG. 5 is a bottom view of the double wedge axe illustrating a flat bottom with an outwardly extending protrusion from the front wedge;
FIG. 6 is a back view of the double wedge axe illustrating the front features of the hookaroon point extending outward and further illustrating the outwardly extending protrusion from the front wedge; and,
FIG. 7 is a front view of the double wedge axe illustrating the front features of the front wedge of the axe.
The broken lines in FIGS. 1 and 4 illustrate a feature of the double wedge axe that forms no part of the claimed design.