The ornamental design for a reversiblehalfbowtie, as shown and described.
FIG. 1 is an isometric view of a first embodiment of the new design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof, wherein surface shading is provided to show surface of material contrasts with surface of material in FIG. 2;
FIG. 4 is a bottom plan view of a second embodiment of the design of Embodiment 1, all other views being the same as the first embodiment;
FIG. 5 is a side view of the first and second embodiments, the opposite side view being a mirror image thereof;
FIG. 6 is a top plan view of a third embodiment of the design of Embodiment 1, all other views being the same except for the difference of the broken line button; and,
FIG. 7 is a side view thereof, the opposite side view being a mirror image.
The broken-line disclosure in FIGS. 6 and 7 forms no part of the claimed design of the alternate embodiment. Surface shading shown on surfaces of claimed design is intended to only represent contrast and not any specific color, tone, color combination, or material.