Au Bon Marché catalog page. An european pioneer of retail, since 1989 it's "Le Bon Marché". Today it belongs to the Moet Hennessy Louis Vuitton group, enuff said.
It's from an undated brochure, but possibly towards the end of the year 1925 (autumn/winter). Note the Lampe Micro Métal which came out in about August.
Other interesting bits:
OI-34196 is a GMR "poste à bobines coronna" with one fixed and one movable coil with some sort of gradation for the coupling. I never found out what their selling point was...
OI-34197 Radio-Secteur Universel 4004 by Péricaud, for DC and for AC (it comes with an eliminator despite the name "secteur" with means "mains"). For AC, it was equipped with the Radio-Secteur tubes mentioned earlier.
OI-34202 Haut-parleur Lumière (a Gaumont model introduced end of 1923 already): folded and starched - or otherwise stiffenened - paper hooked up to a telephone driver, 32 cm in diameter. The system was designed by Louis Lumière, a cinema pioneer.
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