2. Secondly, compare the font and strokes of the signature. Wang's signature has a round font and powerful strokes, and some words have special deformations, such as the top of the word "tiger" and the right of the word "Ming".
3. Finally, verify the authenticity of the signature. The authenticity of the signature can be confirmed by a professional appraisal institution or Wang himself, and can also be compared with other known real signatures.