(a) Stock in corporation 
For purposes of this subchapter shares of stock owned and held by a nonresident not a citizen of the United States shall be deemed property within the United States only if issued by a domestic corporation.

(b) Revocable transfers and transfers within 3 years of death 
For purposes of this subchapter, any property of which the decedent has made a transfer, by trust or otherwise, within the meaning of sections 2035 to 2038, inclusive, shall be deemed to be situated in the United States, if so situated either at the time of the transfer or at the time of the decedents death.

(c) Debt obligations 
For purposes of this subchapter, debt obligations of

owned and held by a nonresident not a citizen of the United States shall be deemed property within the United States. With respect to estates of decedents dying after December 31, 1969, deposits with a domestic branch of a foreign corporation, if such branch is engaged in the commercial banking business, shall, for purposes of this subchapter, be deemed property within the United States. This subsection shall not apply to a debt obligation to which section 2105 (b) applies or to a debt obligation of a domestic corporation if any interest on such obligation, were such interest received by the decedent at the time of his death, would be treated by reason of section 861 (a)(1)(A) as income from sources without the United States.