Pair of duck blue and white opaline lamps

Each lamp is in one piece, all opaline glass. The base is duck blue (peacock blue) streaked with two white stripes, and the globe, entirely white, is opened in collar. Functional electrical system. Bayonet bulbs. White switches, identical but "lazy" (to be reviewed?) Mid-century.: one of the lamps has a legrand (French) take of the 70s, the other a plug that dates from the 50s. The two lamps each weigh 900 grams. They're in perfect condition.