Tile Special 1 x 2 Grille with Bottom Groove

Reference

2412b

Tile Special 1 x 2 Grille with Bottom Groove (part 2412b) is a LEGO element. CollectORbuild's catalog records it in 4,204 sets, including 123 Sesame Street and 1950s Diner. It has been produced in 43 different colors.