United States. (France). 1869. Envelope addressed to France bearing SG 64, 10c green and SG 72, 5c red-brown tied by cork obliterator with adjacent Newberry/ S.C. date stamp 'May 17', endorsed 'by Steamer' via New York' with French Convention 'New York/ 18' transit dated 'May 20' on face, boxed 'P.D.' and hand-struck instructional 'Insufficiently Paid' on face with Carrouches arrival '1st Juin on reverse.
Lovely item of underpaid Trans-Atlantic mail.