How can one tell whether dinarim is referring to gold or silver? In which types of discrepancies between the top part of the document and the bottom part do we hold by the bottom and in which cases by the top? If an amount is given but not the type of coin, how do we determine which coin was meant? Abaye teaches halachot regarding how to avoid forgeries and then several cases ar brought where people tried to defraud him or others but was brought before him and he detected the forgery. The mishna teaches what types of documents can be written by one side without the knowledge of the other and which ones need to be written with the knowledge of both sides? Who pays for the document to be written? Also the scribe needs to know the people involved to prevent the person from giving the document to someone else with the same name.