April 2, 1861; The Charleston Mercury
We would call attention to the advertisement for proposals to supply the Postoffice Department with ‘Mail Bags,’ ‘Wrapping Paper,’ ‘Twine,’ ‘Wax,’ ‘Stamps,’ ‘Stamped Envelopes,’ ‘Printing Blanks,’ etc. Contractors will do well to look into the matter, as the time for receiving the offers is the 1st of May.