Before the Lockstitch became the standard in commercial machine sewing, Chain stitching was the predecessor. Chain stitching goes a long way back in history from hand embroidery to early sewing machines. There is nothing better then a vintage garment adorning some old chain stitched lettering, and if your lucky a mascot or image. A common use for chain stitching was also on service, or workwear uniforms in which the employees name was stitched small on the front left or right chest of the shirt. there is a company called the "Chain Gang" based out of Los Angeles that are really doing some nice chainstitch work today.