Pfaff 141, 143, 145, 151, 153, 155, 541, 543, 545, 551, 553, 555 Single Needle Flat Bed Sewing Machines & Pfaff 142, 144, 146, 148, 546/548, 543, 544, 546, 548 Two Needle Flat Bed Sewing Machines Instruction Book - Additional Instructions For Pfaff Machines 544-12, 4145 Manual