A substantial and authentic early 20th-century ship's navigation lantern, dating to circa 1900–1930. Constructed from heavy cast metal and fitted with its original Fresnel glass lens, original removable red navigation sector, internal brass glare shield, and original oil burner, this is a remarkably complete example of a working maritime lantern. Standing an impressive 32 cm in height, it displays a rich untouched patina acquired through decades of service, enhancing both its historical character and collector appeal. The lantern remains in good original condition, with only a small nibble to the edge of one exterior glass panel, a minor flaw that does not detract from its excellent overall presentation. An increasingly sought-after piece of maritime history, ideal for collectors of nautical antiques, naval memorabilia, or industrial design.