Formsprag Overrunning Clutch Model - Paperweight - Salesman Sample
Updated August 7, 2026
| Lot number | 173 |
| Estimate | $25 - $80 |
| Opening bid | $25 |
| Auction | Advertising Black Americana Knives Salesman Samples |
| Date | August 19, 2026 at 12:00 PM CDT |
| Auction house | B'astute Auctions |
| Location | Winnetka, Illinois |
Formsprag is the inventor and today manufacturer of overrunning clutch. This is a working model for use as a ...
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