FIG. 1 is a top front perspective view of a sign for shelf showing my design in an environment;
FIG. 2 is a top front perspective view thereof;
FIG. 3 is a bottom rear perspective view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a right side elevational view thereof;
FIG. 9 is a left side elevational view thereof;
FIG. 10 is a top front perspective view of a sign for shelf showing my design in an alternate environment;
FIG. 11 is top front perspective view thereof;
FIG. 12 is a bottom rear perspective view thereof;
FIG. 13 is a front elevational view thereof;
FIG. 14 is a rear elevational view thereof;
FIG. 15 is a top plan view thereof;
FIG. 16 is a bottom plan view thereof;
FIG. 17 is a right side elevational view thereof;
FIG. 18 is a left side elevational view thereof;
FIG. 19 is a top front perspective view of a sign for shelf showing my design in another alternate environment;
FIG. 20 is top front perspective view thereof;
FIG. 21 is a bottom rear perspective view thereof;
FIG. 22 is a front elevational view thereof;
FIG. 23 is a rear elevational view thereof;
FIG. 24 is a top plan view thereof;
FIG. 25 is a bottom plan view thereof;
FIG. 26 is a right side elevational view thereof; and,
FIG. 27 is a left side elevational view thereof.
The portions of the FIGS. 2-9, 11-18, 20-27 shown in broken lines illustrate features that do not form part of the claimed design. The broken lines in FIGS. 1, 10, and 19 illustrate an environment of the claimed design or unclaimed features of the design and do not form a part thereof.