The ornamental design for a paper holder, as shown and described.
Description:
FIG. 1 is a perspective view of a "paper holder" showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a longitudinal cross-sectional view thereof, the structure depicted by means of broken lines therein being shown for illustrative purposes only and forming no part of the claimed design.
