BELGIUM (1939) Radio*. 40 centimes sepia postal card (N) with advertising Publibel No 445: "Soniclair Baby."
AVAILABLE AT $15
U.S.A. (1932) Radio vacuum tubes*. Postal card (O) with illustrated ad for tube tester at Radio Shack. "One lazy tube can ruin the whole set..."
AVAILABLE AT $25
RUSSIA (1930) Radio guide*. Clock*. Postal card (O) with illustrated advertising "Radio Listener's Guide to Moscow Radio Station Programs."
AVAILABLE AT $50
RUSSIA (1930) Radio. Clock. Illustrated postal propaganda card (O). Illustrated radio guide.
AVAILABLE AT $50