The ornamental design for a mobile phoneleathersheath, as shown and described.
FIG. 1 is a front, bottom and right perspective view of a mobile phone leather sheath showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof; and,
FIG. 6 is a top plan view thereof, the bottom view being a mirror image of FIG. 6.
The dot-dash broken line in FIG. 3 represents a boundary of the claimed design. The dash-dash broken lines depict environmental subject matter that forms no part of the claimed design. The broken lines form no part of the claimed design.