Image Item No. Description By  6179  Tile, Modified 4 x 4 with Studs on Edge Catalog: Parts: Tile, Modified 394  6180  Tile, Modified 4 x 6 with Studs on Edges Catalog: Parts: Tile, Modified 191  6178  Tile, Modified 6 x 12 with Studs on Edges Catalog: Parts: Tile, Modified 9  6205  Tile, Modified 6 x 16 with Studs on Edges Catalog: Parts: Tile, Modified 3