passbook -
A customer's record of deposits and withdrawals from a savings account at a bank, typically recorded in a small booklet. The bank keeps its own record, which is final in any dispute.
Wikipedia
A passbook or bankbook is a paper book used to record bank transactions on a deposit account. Depending on the country or the financial institution, it can be of the dimensions of a chequebook or a passport. Traditionally, a passbook is used for accounts with a low transaction volume, such as a savings account.
