Singer 20U33 Japanese machine acquired. Swipe for lots of pictures. Either going to upgrade to servo motor, or mount to industrial treadle base? : r/vintagesewing
Amazon.com: SINGER 20U109 Máquina de coser industrial completa en zigzag y de costura recta de grado comercial : Arte y Manualidades
Singer 20U Lockstitch and Zig-Zag Sewing Machine - Maquicampos