Largest size Serica 50 nail ball. The nail ball is signed on the bottom. Some scratches on the bottom. No scale. Good condition with some wear, see the pictures The nail ball got its name from the production process. Spikes or nails were applied to the mould. As a result, during blowing, air bubbles would fill the glass bubble. Then another layer of glass was placed over it. Dimensions: Diameter 12.5 cm Height 11 cm Weight 1932 g Photos are part of the description The nail bulb will be packaged with great care and shipped by registered mail.