Vintage Kellogg Breastplate Telephone Mic
Updated September 23, 2026
This auction ended on September 26, 2026.
See upcoming auctions from Donley Auctions.
| Lot number | 1326 |
| Estimate | $50 - $1,000 |
| Opening bid | $25 |
| Auction | Inventions and Technology Auction |
| Date | September 26, 2026 at 9:00 AM CDT |
| Auction house | Donley Auctions |
| Location | Union, Illinois |
Early 20th-century hands-free operator or dispatcher chest transmitter manufactured by the Kellogg Switchboard & ...
