Vintage Singer 66 or 99 Bobbin Winder Thread Guide

Vintage Singer 66 Thread Guard/Guide with Screw (needle bar)

Vintage Singer 66 99 Bobbin Winder Thread Guide

Vintage Original SINGER 221 Featherweight Bobbin Winder Thread Guide

1939 SINGER SEWING MACHINE BOBBIN WINDER FOR MODEL 66

Singer 99K Vintage 1954 "Eye" Pattern Belt Guard, Bobbin Winder & Thread Guide

VTG 1938 Singer Featherweight 221 Sewing Machine Bobbin Winder & Thread Guide

Singer Sewing Machine 99 or 66 Bobbin Winder with Belt Guard