This listing is for an original Clausing Manufacturing Co. Thread and Feed Chart removed from a Clausing lathe. The chart was found in a scrap pile when the Central of Georgia Railway Co. backshop in Macon Ga. was demolished years ago. I have no knowledge of the particular model lathe the plate was originally attached to. The plate is solid brass, 3-1/2" wide  x 6-1/2" tall, .025" thick. The plate was heavily tarnished when found, and has been cleaned with vinegar/baking soda.