Yang Zhiqi couldn't help but burst into laughter when he heard her say that.
"That's right."
"What bugs?" Old Yang walked over, "What are you all talking about?"
"Nothing much, Dad. Little wants to find out where a letter was sent from."
Old Yang saw the envelope in Jiang Xiao's hand and said, "Just this one? Let me take a look."
He wanted to take a look?
Jiang Xiao handed the envelope over to him.
Yang Zhiqi suddenly exclaimed and said to Old Yang, "Dad, you used to manage a paper factory, could it be that you can tell something about this envelope's paper too?"
Jiang Xiao was taken aback. Old Yang used to manage a paper factory?
Old Yang carefully examined the envelope and said, "Papers are all different. Experienced people can certainly tell. There are many intricacies in this field that outsiders wouldn't know. Back then, the papers from the factories were different, depending on where they were sent and what they were used for. Everything was distinctly marked."
