From 'Free" vibrating shuttle 1913 badged "New Automatic", replacement/ repair parts.  Front and rear slide plates.  Each plate measures 1 21/32" wide x 3 15/32" long.  Rear plate has etched patent dates from 02 to 13, front plate etched with "Number of Cotton / Size of Needle  / Number of Silk" chart. Price includes shipping to lower 48.  Return for refund if it does not work on your project.