A | B | C
| D | E | F |
G | H | I | J
| K | L | M |
N | O | P | Q
| R | S | T |
U | V | W | X
| Y | Z
X - common mark used by one who cannot sign his/her name. The signature is as valid as a signed name unless restricted by statute.
X-BRACING - Crossbracing forming the letter X. Used in floors and partitions.