1. Observe the color of the wax seal: the genuine wax seal is bright with a wide wax edge around it, while the counterfeit wax seal is dark with no wax edge.
2. Observe the material of wax seal: genuine wax seal usually uses better quality materials, such as metal or plastic, while counterfeit wax seal will use inferior materials.
3. Consider the historical background of wax seal: Authentic wax seal is usually associated with a certain historical background, such as the year of production and use. And the wax seal of counterfeit products lacks relevant historical background information.