Red Stitched baseballsThe American League baseballs with the Reach Trademark had Red & Blue stitching, and the National League Spalding Trademark baseballs had Black & Red stitching up until about 1934-1935 when in both league started using only red stitching. Red stitching is still used today but occasional a commemorative Baseball is used and they might use different color stitching. For example: A black stitching commemorative baseball was used on August 25, 1996 at Yankee Stadium in honor of Mickey Mantle. The commemorative baseballs must be approved by MLB.