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!
VIOLIN BOW SCREW, PURE STERLING SILVER, PEARL EYE, EBONY DOT STRIPE, UK SELLER!
Viola Bow Screw Eye with Button (Split Ebony with Peal Dot) UK Shipper
