Colt did not invent the revolver, but his design was the first practical, working version of one, and he developed assembly-line techniques that drove down manufacturing costs. Even so, securing funding for his novel production system proved difficult, and his fledgling company struggled and eventually folded. He then turned to work on underwater mines and telegraph lines. In 1847, Colt reestablished his gun manufacturing business after what famous lawman placed an order for 1,000 revolvers? Discuss
Source: The Free Dictionary