1920s German Art Deco period engraved disc diamond earrings

This is a pair of Guilloché earrings from the Art Deco period in Germany in the 1920s. They are made of 14k gold and set with Gemstone. The inner ring of the concave disc is full of Guilloché. This craft originated in France in the 17th century. Experienced craftsmen repeatedly operate special machines many times to carve precise continuous patterns on the metal. The work adopts a wavy pattern with intertwined high and low peaks, arranged neatly and tightly like scales. It is visually three-dimensional and layered, and is embellished with a diamond in the center. There are irregular and asymmetric decorative totems on the periphery of the ear pins, but they still appear uniform and full of variety and interest in the neat width. The textures of the inner and outer circles are staggered and contrasting, and the concentric circles present the geometric characteristics of the Art Deco period. The work is in good condition. There are traces of modification on the back. It is speculated that it was remade from cufflinks in the past. There is also a 585 print indicating that the metal is 14k gold. There are normal signs of oxidation and wear on the whole. It is a century-old antique and is not in new condition. Origin: Germany Year: 1920s Material: 14k gold Gemstone: Diamond Dimensions: 1x1.4x0.3 cm Weight: 2.0g/pair Condition: The work is in good condition. There are traces of modification on the back. It is speculated that it was remade from cufflinks in the past. In addition, there is a 585 print indicating that the metal is 14k gold. The overall condition shows normal signs of oxidation and wear. It is a century-old antique and is not in new condition. Purchase Notes: Antique jewelry means jewelry that is "more than a hundred years old". Jewelry that is less than a hundred years old can only be called second-hand jewelry or modern jewelry (vintage or second-hand jewelry). All jewelry sold with inlaid antique jewelry will be accompanied by a brand warranty, detailing the age, material, etc. of the jewelry. If the product and the warranty are untrue, we will return it unconditionally. Before each product is sold, camera equipment will be used to record the condition of the product in detail to ensure that members know whether the product has defects or traces of use. Photos are part of the product description. For this reason, members should carefully evaluate whether the product has any defects or signs of use before checking out. If you are indeed willing to purchase, once you complete the checkout process, the products sold by this brand are very special and cannot be returned or exchanged for any reason including defects or depreciation. Therefore, members are asked to double-check whether they are genuine before checking out. Willingness to purchase to avoid disputes. Shipping method: Taiwan, Hong Kong, Macau, and Japan enjoy "free shipping when you purchase one piece of jewelry." In Taiwan, all shipments are "post office registered". If it is not convenient to receive registered mail, please indicate on the order the supermarket to pick up the goods (7-11 or FamilyMart is acceptable), and provide the name or code of the pick-up store. All items in Hong Kong and Macau will be shipped by SF Express.