Marine vessel railing

[0001]FIG. 1 is a perspective view showing the new design for a marine vessel railing, the railing being shown in a mounted position on a pontoon boat;

[0002]FIG. 2 is a front view thereof;

[0003]FIG. 3 is a rear view thereof;

[0004]FIG. 4 is a left side view thereof;

[0005]FIG. 5 is a right side view thereof; and,

[0006]FIG. 6 is a top view thereof.

[0007]The broken lines on the surface of the marine vessel railing depict portions of the article that form no part of the claimed design.

[0008]The broken lines showing a pontoon boat depict environmental structure and form no part of the claimed design.