FOR TRUE COLLECTORS Antique sewing machine SINGER HEMSTITCH 72W12 from 1899. With 3 needles for simultaneous sewing. 72W12: For ornamentation of the waist of the shirt, the corners of handkerchiefs, etc. With 1/16 thread holes in straight or curved lines or circles. There is a forward feed.
The piercer separates the transverse threads, and the seams collect and hold them in the form of rods or spokes, leaving clean holes in the work of the hem for which this machine is known. Very rarely you can already come across this machine model.