Every person who steals, to the value of ten shillings, any woollen, linen, hempen or cotton yarn, or any goods or article of silk, woollen, linen, cotton, alpaca or mohair, or of any one or more of those materials mixed with each other, or mixed with any other material, whilst laid, placed or exposed, during any stage, process or progress of manufacture in any building, field or other place, shall be guilty of felony and on conviction thereof liable to penal servitude for any term not exceeding fourteen years.