Section 1010.940 - Photographic or other reproductions of Government obligations
Nothing herein contained shall require or authorize the reproduction of:
(a) Currency or other obligation or security of the United States as defined in 18 U.S.C. 8 , or(b) Any obligation or other security of any foreign government, the reproduction of which is prohibited by law.
31 C.F.R. §1010.940
75 FR 65812, Oct. 26, 2010, as amended at 81 FR 76864, Nov. 4, 2016