folded letter to Camden, New Jersey datelined "Marlton January 10 1841", endorsed "Care of J. Garner Stage Driver", very fine
Based on the admonition, it appears that the sender of this cover left it for the stage driver at some place of convenience (for example, an inn or a store). The cover then was carried out-of-the-mails to its destination, Camden. The United States mail offered service on this route, but the sender chose to send the cover via the independent stage carrier.