31 C.F.R. § 500.410 Currency, coins, and postage and other stamps.
Title 31 - Money and Finance: Treasury
Currency, coins, and postage and other stamps issued by North Korea, North Viet-Nam, Cambodia, or South Viet-Nam are merchandise of North Korean, North Vietnamese, Cambodian, or South Vietnamese origin subject to §500.204(a)(1). [41 FR 16554, Apr. 20, 1976]
Title 31: Money and Finance: Treasury
PART 500—FOREIGN ASSETS CONTROL REGULATIONS
Subpart D—Interpretations
§ 500.410 Currency, coins, and postage and other stamps.