The ornamental design for a combinationnecktie and bowtie, as shown and described.
FIG. 1 is a front elevation view of a combination necktie and bowtie, showing my new design;
FIG. 2 is a rear elevation view thereof, with the strap laid out in a flattened position;
FIG. 3 is a side elevation view thereof where the straps have been re-positioned; and,
FIG. 4 is an opposite side elevation view thereof.
The strap adjuster fastener illustrated by broken lines represents environmental structure that forms no part of the claimed design. The ends of the strap rendered by broken lines in FIGS. 2-4 indicate that any portion of the article beyond what is shown forms no part of the claimed design.