Brass Rule by GOODBRAND & Co LTD Manchester
A solid brass rule marked 'GOODBRAND & CO LTD MANCHESTER.
GOODBRAND & CO manufactured machines for the textile industries and this is believed to be part of a yarn strength testing machine.
Graduated into eighths and quarters up to 12 inches on one side.
Also marked '3/23' at one end.
A 5/16 inch tick, 1613/16 inches by 17/16 inches overall.