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"Oh, is this something to do with the legendary invisible ink?" Fan Xian said subconsciously.

In ancient times, there was a kind of ink, and when the ink was dry, the words would disappear, and when the letters were put into the water, or in a special potion, the words would be revealed.

After Fan Xian finished speaking, he thought for a while, and then felt that it was wrong, and said: "However, that kind of invisible ink, you have to soak the written words into a special potion to make the handwriting visible, but this line of text is not needed." ”

Lin Yi smiled: "It's almost the same, it's just that the way to achieve it is different." ”

Fan Xian still had doubts in his heart, but Lin Yi had already explained it in such a general way, he knew that if he asked again, he was afraid that people would not be so patient to tell him, so he reluctantly accepted the explanation given by Lin Yi.

He thought for a while and asked, "Mrs. Ji said just now that there are several anti-counterfeiting marks on this invoice, except for the ones just mentioned, where else?" ”

Lin Yi picked up an invoice, then pointed to one part of the invoice behind him, and began to tell Fan Xian what the scope mark looked like and how to identify it.

There are a total of five anti-counterfeiting marks on an invoice, three of which are more obvious and easy to identify, and two are difficult to identify.

After Lin Yi finished speaking, he glanced at Zihuai.

Zi Huai nodded to her, then stepped forward with the small box in his hand, walked to the table, put the small box on the table, opened it, and took out a machine from it.

Zi Huai picked up an invoice and put it into a small gap on it, only to hear a slight noise from the machine, and after a while, it fell out from below.

Zi Huai picked up the invoice and said, "This is a machine specially used to check the authenticity of the invoice, and only the real invoice can come out of this place." ”

Fan Xian stared at the machine for a while and asked, "What if it's fake?" What will happen? ”

Zi Huai glanced at him and said, "Is there any paper, cut a piece of paper the same size as this invoice, and you will know if you put it in here and try it." ”

Fan Xian nodded, reached out and took a piece of paper from the table, cut it to the size of an invoice, and put it into the machine.

After a few snorts, the thin piece of paper leaked out of a gap next to it.

Several people in the government were full of praise for the invoice made by Lin Yi, and Fan Xian liked it even more, and they were reluctant to put it on the table with the invoice.

He took the invoice and looked at it for a while, and suddenly saw a gray-brown trace in the lower right corner, so he asked, "Dare to ask Mrs. Ji, what is here?" ”

Lin Yi glanced at it and said, "This is the lottery area, scratch it open, you can see if there are any prizes in it, if there is, you can get it here to claim the prize." ”

Lin Yi took out a piece of paper from his arms and said: "This is the list of prizes, the first batch, we made a total of two hundred, a total of twenty prizes, numbers and prizes, all recorded here, when the time comes, you can give them a prize according to this piece of paper." ”

As he spoke, Lin Yi handed over the piece of paper, Fan Xian took it and looked at it, and then turned his head to Nan'an.

Nan'an looked down from top to bottom and said, "Mrs. Ji, will this prize be too rich, you see, this invoice, only one or two silver, there is half a catty of white rice, according to this distribution, we must not lose money." ”