Brick 1 x 1 with Blue 'X' Print (Bold Font)

Reference

3005pr9893

BrickLink® #

3005ptXb

Brick 1 x 1 with Blue 'X' Print (Bold Font) (part 3005pr9893) is a LEGO element. CollectORbuild's catalog records it in 1 set, including Alphabet Bricks.