Singer 500/503/Rocketeer Sewing Machine Needle/Presser Bar Thread Guide #172144

Genuine Singer 99/99k/99-13 Sewing Machine Lower Front Side Thread Guide Hook

Lower Needle Clamp Thread Guide Fits Singer Sewing Machine Model 66

Genuine Singer 301/301a Sewing Machine Needle Bar Top Thread Guide - FREE S/H

Genuine Singer Sewing Machine LOWER THREAD GUIDE Vintage Part #172144

Antique Vintage Singer 101 Sewing Machine Bobbin Winder Bell Lower Thread Guide

Genuine Singer 66 Sewing Machine Needle Bar Thread Guide w/ Screw (Red Eye, etc)

Genuine Singer Featherweight 221/222 Sewing Machine Front Side Thread Guide Hook