The top typeface is Avenir. Please ID the bottom typeface from a 1930s postcard.

Not a match, but DIN Neuzeit Grotesk is closer than Avenir. http://new.myfonts.com/fonts/adobe/din-neuzeit-grotesk/
Nobel (http://new.myfonts.com/fonts/fontbureau/fb-nobel/) is in the ballpark too.
Should be Vogue from Intertype 1929.
Look at the G and Q
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