This example is a new reproduction egg-shaped Christmas tree ornament in gold colored glass with a crackled finish. Nostalgic holiday decorations purposefully made to look old usually start appearing for sale in large numbers before the Christmas holiday, for obvious reasons, so collectors looking for authentic antique or vintage holiday themed items need to stay on their guard.
Sometimes new glass decorations are identified as 'kugels,' an early German-made holiday decoration. These new pieces are routinely found with chemically 'aged' metal caps, typically brass. Serrated edges on the caps and the way they are attached to the ornament are diagnostic for modern manufacture. The caps on originals were never serrated. Many original old German kugels were made with silvering on the inside. So they had closed caps attached close to the tops, not large openings in the center, as you see on the item in this listing. The arrangement of close-fitting closed caps helped prevent silvering inside antique kugels from oxidizing.
Its usually best to seek out books or reliable online resources on collecting Christmas related items for information on the reproductions and fakes common in this specialty niche. Books on Christmas collectibles will often include extensive coverage of many types of new fake and reproduction ornaments. When they include photographs of the metal caps used by the modern makers the pictures make it very easy to tell the difference between new and old.
Measures 3 1/2 inches tall and 2 1/4 inches in diameter.