Drinking Vessel Surface

FIG. 1 is a perspective view showing the drinking vessel surface embodying the new 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; FIG. 8 is a perspective view showing a second embodiment of the drinking vessel surface; FIG. 9 is a front elevation view thereof; FIG. 10 is a rear elevation view thereof; FIG. 11 is a left side elevation view thereof; FIG. 12 is a right side elevation view thereof; FIG. 13 is a top plan view thereof; and, FIG. 14 is a bottom plan view thereof. The broken lines in the drawing views depict environment that forms no part of the claimed design. The dot-dash broken lines illustrate a boundary of the claim and forms no part of the claimed design.