I claim the ornamental design for gauge face lubrication bar, as shown and described.
FIG. 1 is a top, perspective view of a gauge face lubrication bar illustrating use in a rail environment including a first end and a second end. Features of the first end repeated on the second end.
FIG. 2 is a perspective view of the first end of the gauge face lubrication bar depicted in FIG. 1.
FIG. 3 is a left end view of the gauge face lubrication bar depicted in FIG. 1.
FIG. 4 is a right end view of the gauge face lubrication bar depicted in FIG. 1.
FIG. 5 is a front view of the first end of the gauge face lubrication bar depicted in FIG. 1.
FIG. 6 is a top view of the first end of the gauge face lubrication bar depicted in FIG. 1.
FIG. 7 is a rear view of the first end of the gauge face lubrication bar depicted in FIG. 1; and,
FIG. 8 is a bottom view of the first end of the gauge face lubrication bar depicted in FIG. 1.
The broken line showing of surrounding rail and clamp structures are for the purpose of illustrating environmental structure and form no part of the claimed invention. The gauge face lubrication bar is shown with break lines indicating a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed invention.