FIG. 1 is a perspective view of a shirt collar stiffening device, in a first position, showing the 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.
FIG. 8 is a perspective view of the shirt collar stiffening device, in a second position.
FIG. 9 is a front view thereof.
FIG. 10 is a rear view thereof.
FIG. 11 is a left side view thereof.
FIG. 12 is a right side view thereof.
FIG. 13 is a top view thereof.
FIG. 14 is a bottom view thereof.
FIG. 15 is a perspective view of the shirt collar stiffening device, in a third position.
FIG. 16 is a front view thereof.
FIG. 17 is a rear view thereof.
FIG. 18 is a left side view thereof.
FIG. 19 is a right side view thereof.
FIG. 20 is a top view thereof.
FIG. 21 is a bottom view thereof; and,
FIG. 22 is a perspective view of the shirt collar stiffening device in use.
The broken lines shown in FIG. 22 depict environmental structure and form no part of the claimed design.