220x220px|thumb|Colt's Armory from an 1857 engraving viewed from the east thumb|Old Post Office and Custom House next to the Old State House (left) in 1903. The building was completed in 1882 and demolished in 1934.|220x220px thumbnail|left|Underwood Typewriter factory in Hartford, –1912Around 1850, Hartford native Samuel Colt perfected the precision manufacturing process that enabled the mass production of thousands of his revolvers with interchangeable parts. A variety of industries adopted and adapted these techniques over the next several decades, and Hartford became the center of production for a wide array of products, including: Colt, Richard Gatling, and John Browning firearms; Weed sewing machines; Columbia bicycles; Pope automobiles; and leading typewriter manufacturers Royal Typewriter Company and Underwood Typewriter Company which together made Hartford the “Typewriter Capitol of the World” during the first half of the 20th century.
220x220px|thumb|Colt's Armory from an 1857 engraving viewed from the east thumb|Old Post Office and Custom House next to the Old State House (left) in 1903. The building was completed in 1882 and demolished in 1934.|220x220px thumbnail|left|Underwood Typewriter factory in Hartford –1912Around 1850, Hartford native Samuel Colt perfected the precision manufacturing process that enabled the mass production of thousands of his revolvers with interchangeable parts. A variety of industries adopted and adapted these techniques over the next several decades, and Hartford became the center of production for a wide array of products, including: Colt, Richard Gatling, and John Browning firearms; Weed sewing machines; Columbia bicycles; Pope automobiles; and leading typewriter manufacturers Royal Typewriter Company and Underwood Typewriter Company which together made Hartford the “Typewriter Capitol of the World” during the first half of the 20th century.