#81 • Rare Remington-UMC .44 Henry Flat Rimfire Cartridges

Part of The Ray Howser Firearms Collection, 1931-2026 (timed auction by Lewis & Grant Auctions)

Starting at $1,000.00

Status: Available

Live bidding starts Nov 20, 2026 10:00 AM EST

The .44 Henry Flat cartridge was initially patented in 1860 by Benjamin Tyler Henry to power the revolutionary 16-shot Henry lever-action rifle. It achieved immortality during the American Civil War—where Confederate troops famously dubbed it the rifle you could "load on Sunday and shoot all week" —and became the foundational cartridge of the American West when chambered in the legendary Winchester Model 1866 "Yellow Boy". This factory-sealed, unopened box of Remington Arms-UMC .44 Henry Flat Rimfire Cartridges is an extraordinary tangible artifact from the twilight era of America's first wildly successful metallic rimfire round. Featuring its original, unbroken green label, this box represents a flawless, museum-grade time capsule of frontier ammunition manufacturing history.