Desirable free-franked mailing envelope, 4.75 x 2.75, crisply addressed by Pierce to his former private White House secretary, "Sidney Webster, Esq., care of Cushing & Webster, Boston, Mass.," and prominently franked along the top, "Franklin Pierce." Annotated with a pencil date of "1858." Retains much of the red wax seal on the reverse. In fine condition. Shortly after leaving the White House in 1857, Pierce returned to his native New Hampshire and then embarked on a three-year tour of Europe and the Bahamas. During his time abroad Pierce maintained correspondence with Webster, the son-in-law of Senator Hamilton Fish and a brilliant Manhattan lawyer who, in 1892, published Franklin Pierce and His Administration.