Stair Tread Marking Gauge

FIG. 1 is a front, top, left side isometric perspective view of a stair tread marking gauge in accordance with my design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a partial enlarged cross-sectional view of the stair tread marking gauge shown looking in the direction indicated by line 8 - 8 of FIG. 6 .

The dash-dash broken lines represent environmental subject matter that form no part of the claimed design.

The dot-dot-dash broken lines represent breakaway lines and form no part of the claimed design;

The claimed design is shown with symbolic breaks in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.