A nice quality solid brass period style sash window fastener. We describe them as ball because of the round finial, we've reclaimed similar ones from properties from the 1800s ight into the 1920s and 30s.
Sizes & info
Finish: Polished brass Fixing plate sizes: 75mm x 20mm (3in x 1in) each Projection: 40mm (1.5in) Diameter of knob: 18mm (0.75in)