The Model 1805 Harpers Ferry Pistol By MI Digital February 23, 2025February 23, 2025 By Frank Graves The man pictured in this daguerreotype holds a U.S. Model 1805 Harpers Ferry .54 caliber flintlock pistol. A little more than 2,000 pairs were manufactured from 1806 to 1808, anSubscribe or log in to read the rest of this content.