This is marked as Silver Screw, but as not hall marked, I can not confirm this.
Violin Bow Screw Eye with Button - Plain Screw with Plain End- UK Shipper
Violin Bow Screw Eye with Button - Split Plastic with Plain End- UK Shipper
Violin Bow Screw Eye with Button - Split Ebony with Dot Inley End- UK Shipper
VIOLIN BOW SCREW, FINE QUALITY MATERIALS, PEARL EYE, CHROME MOUNTED, UK SELLER!
Viola Bow Screw Eye with Button (Split Ebony with Peal Dot) UK Shipper
Double Bass Bow Screw Eye with Button (Split Ebony with Peal Dot) UK Shipper
