Adjustable plant box railing bracket

FIG. 1 is a left side view of a first variant of an adjustable plant box railing bracket;

FIG. 2 is a top view of the first variant of the design;

FIG. 3 is a bottom view of the first variant of the design;

FIG. 4 is a right side view of the first variant of the design;

FIG. 5 is a front side view of the first variant of the design;

FIG. 6 is a rear side view of the first variant of the design;

FIG. 7 is a perspective view of the first variant of the design;

FIG. 8 is a perspective view of the first variant of the design depicted with environmental subject matter;

FIG. 9 is a left side view of a second variant of the design;

FIG. 10 is a top view of the second variant of the design;

FIG. 11 is a bottom view of the second variant of the design;

FIG. 12 is a right side view of the second variant of the design;

FIG. 13 is a front side view of the second variant of the design;

FIG. 14 is a rear side view of the second variant of the design; and,

FIG. 15 is a perspective view of the second variant of the design.

The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design.