Keyboard

FIG. 1 is a front, right and top perspective view of a first embodiment of a keyboard, showing my design.

FIG. 2 is a rear, left and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof.

FIG. 9 is a front, right and top perspective view of a second embodiment of the keyboard.

FIG. 10 is a rear, left and bottom perspective view thereof.

FIG. 11 is a front elevation view thereof.

FIG. 12 is a rear elevation view thereof.

FIG. 13 is a left side elevation view thereof.

FIG. 14 is a right side elevation view thereof.

FIG. 15 is a top plan view thereof; and,

FIG. 16 is a bottom plan view thereof.

The dashed broken lines depict portions of the keyboard that form no part of the claimed design.