The ornamental design for a bottleholder, as shown and described.
FIG. 1 is a front-top-right perspective view of a bottle holder showing my new design;
FIG. 2 is a rear-bottom-left perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a right-side elevational view thereof;
FIG. 8 is a left-side elevational view thereof;
FIG. 9 is an exploded front-top-left perspective view thereof wherein the hook portion is separate from the holding portion;
FIG. 10 is an exploded front-bottom-right perspective view thereof;
FIG. 11 is an exploded rear-top-right perspective view thereof; and,
FIG. 12 is an exploded rear-bottom-left perspective view thereof.
The broken lines and the areas within them depict portions of the bottle holder that form no part of the claimed design. Each side of the holding portion of the bottle holder includes a symbolic break in its width. The broken lines illustrating the break lines and the appearance of any portion of the article between them form no part of the claimed design.