This paper presents three Coptic potsherds kept in the Cairo Egyptian Museum - as part of a collection of Coptic ostraca bearing the special registration number 18953.
The first ostracon represents a private letter, the sender's name is missing here suggested to be Joseph and the recipient seems to be a monk his name is Mosses; this letter was sent concerning giving dates to a shepherd called Anaias.
 The second and the third ostraca are parts from agreement for repayment a loan and perhaps they represent one text.
In the second potsherd, the names of debtor and creditor are missing in the text, the loan was one (or more) of golden coin called Tremis. The repayment will be in something lost in the text perhaps money or cereals. The repayment will be with interest.
The third potsherd represents the assent formula of an agreement for repayment a loan (perhaps represents the end of the last text), it represents the signature of the debtor who is a deacon and calledPashtosh.