Found a little instruction sheet from my childhood when moving : r/lego
Tile, Modified 1 x 2 Grille with Bottom Groove / Lip : Part 2412b | BrickLink
LEGO PART 2412b Tile Special 1 x 2 Grille with Bottom Groove | Rebrickable - Build with LEGO
10PCS MOC Bricks 2412/30244 1x2 high-tech Changeover Catch For Building Blocks Parts DIY Educational Parts Toys For Childre
LEGO Dark Stone Gray Tile 1 x 2 Grille (with Bottom Groove) (2412) | Brick Owl - LEGO Marketplace
LEGO 6223126 GRILLE 1X2 - SAND GREEN
LEGO 4211350 RADIATOR GRILLE 1X2 - MEDIUM STONE GREY
I had an extra minifigure in a power miners set i am so happy ! : r/lego
LEGO Dark Stone Gray Tile 1 x 2 Grille (with Bottom Groove) (2412) | Brick Owl - LEGO Marketplace
Amazon.com: Classic Bricks Tile Special 1 x 2 Grille with Bottom Groove 100 Piece Compatible with Lego Parts 2412, Creative Play Set - 100% Compatible with Lego and All Major Brick Brands : Toys & Games