 In Longacre 's first years as a chief engraver , the Philadelphia Mint was dominated by Mint Director Robert M. Patterson and Chief Coiner Franklin Peale . Conflict between Longacre and the two men developed after Congress ordered a new gold dollar and double eagle , with both to be designed by Longacre . Peale and Patterson nearly had Longacre fired , but the chief engraver was able to convince Treasury Secretary William M. Meredith that he should be retained . Both Patterson and Peale left the Mint in the early 1850s , ending the conflict . 
