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- "Radio Time Around the World" Wheel Chart Promotional Giveaway, 1929 - Gas station operators and mechanics advertised their services with promotional giveaways. This circa 1929 chart capitalized on the growing popularity of amateur or ham radio. By adjusting the wheel accordingly, a radio operator could determine the current time anywhere in the world. Broadcast AM radios were just making their way into cars at the time too.
- 1929
- Collections - Artifact
"Radio Time Around the World" Wheel Chart Promotional Giveaway, 1929
Gas station operators and mechanics advertised their services with promotional giveaways. This circa 1929 chart capitalized on the growing popularity of amateur or ham radio. By adjusting the wheel accordingly, a radio operator could determine the current time anywhere in the world. Broadcast AM radios were just making their way into cars at the time too.