John D. Kuharek - Manhattan Project Chemist - Autographed 509th Composite Group Cover
Updated August 6, 2026
| Lot number | 0460 |
| Estimate | $50 - $75 |
| Opening bid | $25 |
| Auction | AMERICA'S STORY: 250TH ANNIVERSARY (PART I) |
| Date | August 11, 2026 at 12:00 PM EDT |
| Auction house | JG Autographs |
| Location | Danvers, Massachusetts |
Details: John D. Kuharek autographed commemorative cover honoring the 509th Composite Group, signed in black ink. Kuharek served as a chemist with the Manhattan Project, contributing to the
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