Pair of Pigeon and Olympe lamps

Pair of beautiful mineral essence lamps (they worked with white spirit) from the early 1900s complete with an excellently preserved glass hat, they are of two different brands, one is a Pigeon (probably the most famous brand at the time); the other is an Olympe, also belonging to Pigeon, later “Olympic” production. You can read, on the brass part, both the brands and the guarantees offered: absolute safety and “non-explosiveness”! One of the two still has the wick.