A 6^th order copper & brass navigation light by BBT, France, circa 1900.

By Barbier, Benard, & Turenne of Paris for the harbour of Rouen.

300mm 6th order Fresnel lens marked: BBT 63733

Height: 137 cm.

Re-wired for electricity.

Barbier, Benard, et Turenne, 82 Rue Curial, 19^e arr^t. Paris, was a French company founded in 1862 which manufactured the lighting systems and lenses for lighthouses. The company was founded in 1862 by Frederic Barbier and Stanislas Fenestre. Barbier, Benard, et Turenne (BBT) began with the production of Fresnel lenses. It later expanded into production of buoys, fog sirens, and complete lighthouses. It was the world leader in the construction of lighthouses in the late 19th century.

Literature: La lumière au bout du monde, Barbier, Bénard, et Turenne, Constructeurs de Phares. Ecomusée d’Ouessant. 1997.