FIG. 1 is a front perspective view of a curved writing board showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a left side elevational view thereof;
FIG. 7 is a front perspective view of a second embodiment of a curved writing board showing my new design;
FIG. 8 is a rear perspective view thereof;
FIG. 9 is a front elevational view thereof;
FIG. 10 is a rear elevational view thereof;
FIG. 11 is a right side elevational view thereof;
FIG. 12 is a left side elevational view thereof;
FIG. 13 is a front perspective view of a third embodiment of a curved writing board showing my new design;
FIG. 14 is a rear perspective view thereof;
FIG. 15 is a front elevational view thereof;
FIG. 16 is a rear elevational view thereof;
FIG. 17 is a right side elevational view thereof;
FIG. 18 is a left side elevational view thereof;
FIG. 19 is a front perspective view of a fourth embodiment of a curved writing board showing my new design;
FIG. 20 is a rear perspective view thereof;
FIG. 21 is a front elevational view thereof;
FIG. 22 is a rear elevational view thereof;
FIG. 23 is a right side elevational view thereof; and,
FIG. 24 is a left side elevational view thereof.
The broken lines shown in the drawings depict environmental subject matter and form no part of the claimed design.
The shade lines in the figures show contour and not surface ornamentation of the claimed design.