The ornamental design for an outerprotectionplate for a welding helmet, as shown and described.
FIG. 1 is a perspective view showing the new design for an outer protection plate for a welding helmet;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a perspective view thereof in use; and,
FIG. 9 is another perspective view thereof in use.
The broken line showing forms no part of the claimed design, and the shading is provided to illustrate contour only and is not an indication of texture, gloss, etc.