| Brand | Gardner Rodman |
|---|---|
| Time Period Manufactured | Pre-1930 |
| Country/Region of Manufacture | United States |
Check the listing for details. 1921 Gardner Rodman Heliphone * Compact, Self-Casing Crystal Radio * Works. Listed at 500.00 USD. Here's a 1921 Gardner Rodman Heliphone crystal radio. Condition overall is excellent. The original Heliphone condenser is still in good shape, and the secondary tuning coil still slides easily back and forth over the primary coil.
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