Component, Timepiece
Description
Brass and steel flys for clock mechanism. (.5,.8,.9) have both the fly tension spring and fly pinion, while (.6,.7) are only the fly tension spring. The springs of (.6-.9) are brass, while the spring of (.5) is steel, but all have a rectangular shape, notched on the bottom, with two horizontal oblong cut outs. The pinions are threaded through the cut outs.