This Luxembourg official postage stamp features a finely engraved portrait of Grand Duchess Charlotte, framed with laurel leaves and topped with a royal crown. Issued in the early 20th century, the stamp is printed in deep green with a bold black overprint “Officiel,” designating its use exclusively for government correspondence. The “30c” denomination appears at the top corners, with “Luxembourg” inscribed at the base. These official issues are of particular interest to collectors specializing in Luxembourg, classic European official stamps, and overprint varieties. A fine example of Luxembourg’s elegant definitive designs adapted for official service.