such amount of gold as may be necessary to prevent reducing the Fund's holdings of the currency below seventy-five per cent. of the new quota.
Section 5. Substitution of securities for currency
The Fund shall accept from any member in place of any part of the member's currency which in the judgment of the Fund is not needed for its operations, notes or similar obligations issued by the member or the depository designated by the member under Article XIII, Section 2, which shall be non-negotiable, non-interest bearing and payable at their par value on demand by crediting the account of the Fund in the designated depository. This Section shall apply not only to currency subscribed by members but also to any currency otherwise due to, or acquired by, the Fund.
Article IV
Par Value of Currencies
Section 1. Expression of par values
(a) The par value of the currency of each member shall be expressed in terms of gold as a common denominator or in terms of the United States dollar of the weight and fineness in effect on July 1, 1944.
(b) All computations relating to currencies of members for the purpose of applying the provisions of this Agreement shall be on the basis of their par values.
Section 2. Gold purchases based on par values
The Fund shall prescribe a margin above and below par value for transactions in gold by members, and no member shall buy gold at a price above par value plus the prescribed margin, or sell gold at a price below par value minus the prescribed margin.
Section 3. Foreign exchange dealings based on parity
The maximum and the minimum rates for exchange transactions between the currencies of members taking place within their territories shall not differ from parity:
