Kt a/k 424a envelope
First word: iš-tù (ištu)
Translation: He will pay 4 weeks from the ḫamuštum of Ennum-Aššur.
First word: ú-ṣa-áb (uṣṣab)
Translation: If he does not pay (on time), he will add 1 1/2 shekels per mina per month as interest.