Image Item No. Description  3754  Brick 1 x 6 x 5 Catalog: Parts: Brick  702  Brick 4 x 4 Corner Catalog: Parts: Brick  6212  Brick 4 x 10 Catalog: Parts: Brick  4202  Brick 4 x 12 Catalog: Parts: Brick  30400  Brick 4 x 18 Catalog: Parts: Brick  700  Brick 10 x 20 (Undetermined Type) X Catalog: Parts: Brick