The ornamental design for a wall-mounted coil for holding a hairdryer, as shown and described.
FIG. 1 is a perspective environmental view of a wall-mounted coil for holding a hair dryer in accordance with my design;
FIG. 2 is a perspective view of the wall-mounted coil for holding a hair dryer;
FIG. 3 is a front elevational view of the wall-mounted coil for holding a hair dryer;
FIG. 4 is a top plan view thereof;
FIG. 5 is a side elevational view as viewed from the left side of FIG. 4;
FIG. 6 is a side elevational view as viewed from the right side of FIG. 4;
FIG. 7 is a rear elevational view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken line wall and hair dryer in FIG. 1 illustrate environment. The broken lines in FIG. 7 illustrate portions of the wall-mounted coil for holding a hair dryer. None of the broken lines form part of the claimed design.