FIG. 1 is a first perspective view of a flat transparent leather case showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is an enlarged view of the selected portion, in FIG. 1; and,
FIG. 10 is an enlarged view of the selected portion in FIG. 2.
The broken lines shown in the drawings depict portions of the flat transparent leather case in which the design is embodied that form no part of the claimed design. The long dash-short dash-long dash broken lines mark the area from which the enlarged views were taken and form no part of the claimed design.