In the performance of his functions and duties under the provisions of sections 1544 to 1548 of this title, the Secretary of Commerce is authorized—
((a)) To prescribe, amend, and repeal such rules and regulations as he may deem necessary, and to accept contributions for carrying out the purposes of said sections; and
((b)) To employ, subject to chapter 51 and subchapter III of chapter 53 of title 5, one special assistant and not to exceed five artists and illustrators.