The ornamental design for a mill, as shown and described.
FIG. 1 is a front top perspective view of a mill according to our new and ornamental design;
FIG. 2 is a rear top perspective view thereof;
FIG. 3 is a front elevation view thereof,
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is a bottom perspective view thereof.
The evenly-spaced broken lines in the Figures illustrate portions of the mill that form no part of the claimed design. The dash-dot broken lines in the Figures between the solid line portions and the evenly-spaced broken line portions illustrate the boundaries of the claimed design and form no part of the claimed design. The break lines that separate the mill in the Figures represent that the mill has indeterminate width and length. The break lines and any portion between the break lines form no part of the claimed design.