A classic Luxembourg official stamp featuring the engraved portrait of a Grand Ducal figure, issued in rich brown tones. This example carries the elegant diagonal “Officiel” overprint, denoting its authorized use by government offices. The intricate ornamental frame and crisp typography highlight the refined printing style of the early 20th-century Luxembourg postal service. A desirable piece for collectors of European official issues, overprints, and Grand Duchy classics. Excellent for thematic collections involving royalty, administration, and engraved portraiture.