1. In 24, the flying fairy removed the grid lines, which have not been changed so far. This detail is obvious, but the test year, if it doesn't correspond to the year, is fake wine.

2. At the end of 21, a small mouth at the left flying fairy skirt was open (left). Closed since 213 (right).

3. The word "registered trademark" is also a mystery. The left and right structure of the word "note" of real wine is separated, and if it is connected, it can be concluded that it is fake wine; The word "main" on the right side of the word "note" stands straight down. If it is a little or inclined, it can be directly identified as fake wine.

4. The last stroke of the word "Book" of real wine is a small tick with a slight radian. The word "book" of fake wine is too square, with obvious hooks or no hooks.

5. The first stroke of the word "Shang" of real wine is a thin line point vertically downward. If it is crooked or inclined, it is fake wine.

the "label" of real wine is beside the word "wood", and the word "wood" is horizontally connected with the "stripe" of the ticket. If it is beside the handle or the word "wood" is not connected with the "stripe" of the "ticket", it is fake wine.