Millions of U. S. citizens have heard the thunderous "Voice of the Sky" booming advertising sales-talk down from above. Millions more have read the advertising slogans which blaze in 6-ft. Neon letters from the underwing of another huge plane. Lately at a Long Island airport the stupendous vocal cords of the "Voice of the Sky" were extracted from its old plane and grafted into the Neon-light plane. Last week the grafted ship was put through dress rehearsals over Manhattan & vicinity.
The combined sight & sound advertising mechanism is owned and operated...
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