FRANCE (1937) Electric lamp air cleaner*. Free frank Postal check cover with illustrated advertising for Lampe Vidal - Assainit L'Atmosphere de Tous Locaux et Vus Fait Respirer un air pur, sain et Parfumé.
AVAILABLE AT $40
U.S.A. (1940) Lighter*. Fire*. One cent postal card (N) with paid response (N) offering a free "Zippo lighter" and advertising gas heating units.
AVAILABLE AT $25