Reference for Shevuot 86:10

אבל המלוה אלף זוז בשטר והניח משכון בידו דברי הכל אבד המשכון אבדו מעותיו

The Nehardeans say, even in the case of a handle and silver bar, if he lost the silver bar, h loses half [the loan], if he lost [also] the handle, he loses the whole [loan]. We learnt: 'I LENT YOU A SELA' ON IT, AND IT WAS WORTH A SHEKEL,' AND THE OTHER SAYS: 'NO! YOU LENT ME A SELA' ON IT, AND IT WAS WORTH THREE DENARII,' HE IS LIABLE.

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