Circular (confidential)
To Collectors of the Frontier Districts
Treasury Department
March 18th 1844
Sir
From representations made to this Department, there being reason to believe that valuable articles, such as laces, silks and jewelry; and sometimes clothes and sheep's felts, are brought from Canada without being entered, and that the Express lines afford great facilities for their transmission, I have to call your special attention to the subject, and to enjoin upon you and upon your subordinate Officers the utmost vigilance in regard to such Express lines as may pass between Canada and the United States, causing such search to be made in such cases, of the bags, boxes, trunks and packages which the agents may have in charge, when crossing the frontier line, or immediately after arriving in the United States.
Respectfully
Your Obt. Sert
J. C. Spencer
Secretary of the Treasury
Samuel K. Haring Esq.
Collector of the Customs
Dt. of Michilimackinac
