We claim the ornamental design for a tippet holder, as shown and described.
FIG. 1 is a top, right, front perspective view of an aspect of a tippet holder on a pack according to our design;
FIG. 2 is a top, left, perspective view of the tippet holder illustrated in FIG. 1;
FIG. 3 is a bottom, left, perspective view of the tippet holder illustrated in FIG. 1;
FIG. 4 is a front elevation view of the tippet holder illustrated in FIG. 1;
FIG. 5 is a rear elevation view of the tippet holder illustrated in FIG. 1;
FIG. 6 is a left elevation view of the tippet holder illustrated in FIG. 1;
FIG. 7 is a right elevation view of the tippet holder illustrated in FIG. 1;
FIG. 8 is a top plan view of the tippet holder illustrated in FIG. 1; and,
FIG. 9 is a bottom plan view of the tippet holder illustrated in FIG. 1.
The broken line showing of a pack, tippet spool and attachments are included for the purpose of illustrating environmental structure only and form no part of the claimed design.